Write the equation of the linear function for which f(0)=3 and f^-1(0)=-2

Answers

Answer 1
we know that if f(a)=b then [tex]f^{-1}(b)=a[/tex]
and
if [tex]f^{-1}(a)=b[/tex] then f(b)=a
so


since [tex]f^{-1}(0)=-2[/tex] therefor, f(-2)=0

we have 2 points, (-2,0) and (0,3)

we can use slope intercept form
y=mx+b
m=slope
b=y intercept

we have when x=0, y=3, that is the y intercept
y=mx+3

substitute the other point
(-2,0)
x=-2, y=0
0=-2m+3
-3=-2m
divide both sides by -2
[tex]\frac{3}{2}=m[/tex]


the equation is
[tex]y=\frac{3}{2}x+3[/tex]
or
3x-2y=-6 in standard form

Related Questions

Wyatt’s eye-level height is 120 ft above sea level, and Shawn’s eye-level height is 270 ft above sea level. How much farther can Shawn see to the horizon? Use the formula mc024-1.jpg, mc024-2.jpg with d being the distance they can see in miles and h being their eye-level height in feet.

Answers

The formula is:

d = √ [ 3h / 2], for h > 0

where d is the distance they can see in miles, and h is their eye-level height in feet.

In the case of Wyatt, h = 120 ft

=> d = √ [ 3(120) ] / 2 = √180 = 13.42 miles

In the case of Shawn, h = 270 ft

=> d = √ [ 3 (270) / 2 ] = √ 405 = 20.12 miles

Given that the question is how much farther Shawn can see to the horizon, you must find the difference:

20.12 miles - 13.42 miles = 6.7 miles

Answer: 6.7 miles

Answer:

3 sqrt5

Step-by-step explanation:


Talia is packing a moving box. She has a square-framed poster with an area of 9 square feet. The cube-shaped box has a volume of 30 cubic feet. Will the posture lie flat in the box?

Answers

We calculate for the dimensions (the length of the sides) of both the poster and the cube. If the length of the side of the poster is shorter compared to that of the box then, the poster will lie flat in the cube. However, if the poster has a length that is longer than that of the cube then, it will not lie flat in the cube.

length of the poster = sqrt (9 ft^2) = 3 ft
length of the cube = cbrt (30 ft^3) = 3.11 ft

Since, the length of the cube is longer compared to the length of the poster then, the poster will lie flat on the cube. 

Answer: Yes, the posture will be lie flat in the box.

Step-by-step explanation:

since we have given that

Area of square framed poster = 9 sq. feet

Volume of cube shaped box = 30 cubic feet.

As we know the formula for "volume of cube":

[tex]Volume=30\\\\a^3=30\\\\a=\sqrt[3]{30}=3.10\ feet[/tex]

So, Area of cube shaped box would be

[tex]6a^2=6\times (3.1)^2=57.9\ ft^2[/tex]

Since the cube box is large enough so that the posture will lie flat in the box.

1. Clara grew 2 1/8 inches from her ninth birthday to her tenth birthday. If she was 53 2/3 inches when she turned nine. How tall was she when she turned ten?

Answers

53 2/3 + 2 1/8

53 + 2 = 55
2/3 + 1/8 = 16/24 + 3/24 = 19/24
55 + 19/24 = 55 19/24 inches <==

I need help to figure this problem out

Answers

check the picture below.

keeping in mind that, "x" is just a length unit, and thus it cannot be negative.

Which graph represents the solution set of the system of inequalities?

{−2x+y≤4
y>x+2

Answers

I would say that it is  b
Answer:

The correct graph is:

                     First graph

Step-by-step explanation:

The first inequality is:

                [tex]-2x+y\leq 4[/tex]

The graph of this inequality is a straight solid line ( since the inequality is a inequality with a equality sign i.e. not strict ) which passes through (-2,0) and (0,4) and the shaded region is towards the origin as it passes the zero point test.

The second inequality is:

               [tex]y>x+2[/tex]

is a dotted straight line (since the inequality is strict) which passes through (-2,0) and (0,2) and the shaded region is away from the origin as it fails the zero point test.

Hence, the correct graph is the first graph.

You buy a bookshelf. The label on the box says the bookshelf is 5151 inches tall. How tall is it in feet?

Answers

It would be 429.25 feet tall

1 foot = 12 inches

 so 5151 inches divided by 12 = 429.25 feet tall

that is too tall for a normal house so hopefully you meant 51 inches

51 / 12 = 4.25 (4 1/4) feet tall

You want to make five-letter codes that use the letters a, f, e, r, and m without repeating any letter. what is the probability that a randomly chosen code starts with a?0.100.150.200.25

Answers

0.2 is the probability that a randomly chosen code starts with a

Answer:

Option C is the right answer

Step-by-step explanation:

The probability that a randomly chosen code starts with A is  0.20

are relations always functions

Answers

No. Just because something is related to something, doesn't mean it functions the same way.
No, if a relation fails the vertical line test it's not a function

Julie owns a video store. Her monthly expenses, including rent, average $1,168. This year she made $34,416 in revenue. What is the difference between her average monthly revenue and her average monthly expenses?

Answers

Since there are 12 months in a year, we can divide her yearly revenue over 12 to get 34416/12=2868 as her average monthly revenue. Since her expenses are 1168 and difference means subtraction, we subtract 1168 from 2868 (due to that revenue came first in the last sentence of the question) to get
 2868-1168=1700

A hose fills a tank at a rate of 20 gallons per minute.

What is the rate in liters per hour?

(1 gallon ≈ 3.79 liters)

Answers

First, you need to know how many gallons will be in the tank after 1 hour. So:

Answer:

 [tex]\frac{4548}{1}[/tex] liters per hour.

Step-by-step explanation:

Given  : A hose fills a tank at a rate of 20 gallons per minute.

To find : What is the rate in liters per hour?

Solution : We have given

A tank can fill hose in 1 minute = 20 gallon .

1 gallon = 3.79 liters.

20 gallon = 20 * 3.79 =  75.8 liters.

20 gallon = 75 .8 liters.

So,

A tank can fill hose in 1 minute = 75.8 liters.

A tank can fill hose in  60 minute = 75.8 * 60 liters = 4548 liters.

A tank can fill hose in  1 hour = 4548 liters.

Rate = [tex]\frac{4548}{1}[/tex] liters per hour.

Therefore,  [tex]\frac{4548}{1}[/tex] liters per hour.

Which number is prime?

27

14

91

59

Which trinomial is a perfect square trinomial?



a2 – 8a + 64

a2 – 4a + 64


a2 – 4a + 16


a2 – 8a + 16

Answers

59 is the first answer you are looking for and
I believe it is the first one

Final answer:

The number 59 is prime, and the trinomial a^2 - 4a + 4 is a perfect square trinomial.

Explanation:

Prime number: The number 59 is prime because it is only divisible by 1 and itself, while the other numbers have factors other than 1 and themselves.

Perfect square trinomial: The trinomial a2 - 4a + 4 is a perfect square trinomial because it can be factored to (a - 2)(a - 2), making it a square of a binomial.

help help help please

Answers

Answers:
The length of XY is 4
The length of ZW is 6

Because we don't get the same length (for XY and ZW), this means that the segments are not congruent.

-------------------------------------------------------------

To find the length of segment XY, you can count the number of spaces between -7 and -3 to get 4 units. Or you can subtract and use the absolute value notation to ensure the result is positive

|-7-(-3)| = |-7+3| = |-4| = 4

Do the same for segment ZW. 
|2-8| = |-6| = 6


What is the side length of the smallest square plate on which a 30​-cm chopstick can fit along a diagonal without any​ overhang?

Answers

Answer:

21.2

Step-by-step explanation:

math xl said so

The side length of the smallest square plate is 21.2 units.

What is the Pythagoras theorem?

The Pythagoras theorem which is also referred to as the Pythagorean theorem explains the relationship between the three sides of a right-angled triangle. According to the Pythagoras theorem, the square of the hypotenuse is equal to the sum of the squares of the other two sides of a triangle.

Given that, length of diagonal on the square is 30 cm.

Let the side of a square be x.

Now, x²+x²=30²

2x²=900

x²=450

x=√450

x=21.2 units

Therefore, the side length of the smallest square plate is 21.2 units.

To learn more about the Pythagoras theorem visit:

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Which angles are corresponding angles?
a. ∠7 and ∠3
b. ∠8 and ∠3
c. ∠3 and ∠11
d. none of this

Answers

Corresponding angles are angles that are located in the same area at each intersection. 

Angles 7 and 3 are vertical angles.

The answer is C, angles 3 and 11 are corresponding angles.

PLEASE HELP:::
Louise used this figure to model the expression 20/4.

Answers

did you figure out the answer cause i need it 
The answer is C because if it doesn't start at zero, then it wouldn't make 5 groups. 

Please calculate −0.5(7b−12a)−(8.4a−14b) if a=−10; b=−6.

Answers

The answer to your question would be -39.

Shen needs to memorize words on a vocabulary list for german class. he has memorized 12 of the words, which is two-thirds of the list. how many words are on the list?

Answers

2/3 of the list = 12

2/3x = 12
x = 12 / (2/3)
x = 12 * 3/2
x = 36/2
x = 18 <=== there are 18 words on the list

After reviewing her driving record for the past 3 years, Cindy’s insurance company offers her a good driver discount of 4.5%.  Her original policy was based on the premiums listed below.  What is her new annual premium including the discount?

Answers

I just took the test, and the answer is A 504.24

Cindy's new annual premium including the discount would be given by: Option A: $504.24

What is a percentage?

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

The table given is:

Type of Insurance Coverage= {Coverage Limits} and  {Annual Premiums}

Bodily Injury                              $50/100,000          $31. 75

Property Damage                     $25,000                 $120. 50

Collision                                    $500 deductible    $275. 75

Comprehensive                        $100 deductible     $100. 00

Her total annual premium = 31.75 + 120.50 + 275.75 + 100 = $528

Discount offered to her = 4.5% of $528 =  (in dollars)

The new premium that she needs to pay after discount = Old premium - discount = $528 - $23.76 = $504.24

Therefore, Cindy's new annual premium including the discount would be given by: Option A: $504.24

To learn more about the percentage;

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The complete question is ;

After reviewing her driving record for the past 3 years, Cindy’s insurance company offers her a good driver discount of 4. 5%. Her original policy was based on the premiums listed below. What is her new annual premium including the discount? Cindy's Auto Insurance Policy Type of Insurance Coverage Coverage Limits Annual Premiums Bodily Injury $50/100,000 $31. 75 Property Damage $25,000 $120. 50 Collision $500 deductible $275. 75 Comprehensive $100 deductible $100. 00 a. $504. 24 b. $523. 50 c. $528. 00 d. $551. 76.

there are 40 girls on a softball team. 3 out of every 5 prefer chocolate over vanilla milkshakes .

how many girls prefer chocolate milkshakes

Answers

24 girls prefer chocolate over vanilla.

24 girls prefer chocolate milkshakes out of 40 girls.

Ratio and proportions

From the given information, you can see that we have a total of 40 girls

If  3 out of every 5 prefer chocolate over vanilla milkshakes, hen;

3girls = every 5 prefer chocolate

x = 40 girls

Cross multiply

5x = 3 * 40

5x = 120

x = 24

Hence 24 girls prefer chocolate milkshakes

Learn more on ratio and proportions here: https://brainly.com/question/2914376

if f(x) = 2x-5, which expression represents f(x+1)

Answers

F(x)=2x-5
Insert the value of x which is x+1 ->
F(x+1)= 2(x+1)-5
Distribute ->
F(x+1)=2x+2-5
Then, add like terms->
F(x+1)=2x-3

Answer:  The required expression for f(x+1) is 2x-3.

Step-by-step explanation:  We are given the following function :

[tex]f(x)=2x-5~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)[/tex]

We are to find the expression for f(x+1).

To find the expression for f(x+1), we need to substitute x+1 in place of x in (i).

So, we get from expression (i) that

[tex]f(x+1)\\\\=2(x+1)-5\\\\=2x+2-5\\\\=2x-3.[/tex]

Thus, the required expression for f(x+1) is 2x-3.

Can someone please help me with #2 and 4 please thanks

Answers

2. x(2x^2+x+3)

4. 2x^4+11x^2+12= (2x+3)(x+4)

Devin brought his snail collection to school.He has 10 snails.How could he put them into 2 tanks so two classes could see them?Write equation for all the possible ways.One of the way is given. Explain how you have found all the ways.

Answers

 10×2 and 10+10 because you're doing multiplication

Write and English phrase that would translate into the following mathematical expression. 5z-8.

Which of the following is equivalent to the expression 5z-8?

Answers

5z - 8

8 less then the product of 5 and a number z <== this is equivalent

do I still have to write an English phrase ?....if so, 
the product of 5 and a number z, decreased by 8

Investigators at the scene of a crime strongly suspect that a handwritten promissory note for $10,000.00 has been altered to read $40,000.00. how might this be proven?

Answers

To prove that there is altering made on the promissory note, the investigators should test the ink on a piece of TLC. This would tell them when the ink was used and how long ago it was used so they can compare.

The perimeter of a rectangle is 900 yards. what are the dimensions of the rectangle if the length is 70 yards more than the width?

Answers

First, it would be best to divide each side of the rectangle (4 sides) equally first that is:

900:4= 225

So, now we know each side is 225 Yards first..
Now, since the length is 70 yards longer than the width, we know that:

Length: 225+70= 295

Respectively, we also know that the width is 70 yards shorter since the length is already 70 yards longer:

Width: 225-70=155

Checking answer: (295*2) + (155*2) = 900 Yards

As our final answer, the dimension of the rectangle is 295 yards (Length) by 155 yards (Width)

Hope this help with your studies.

A line passes through the point (4, –2) and has a slope of mc010-1.jpg.

What is the value of a if the point (–4, a) is also on the line?
–6
–5
5
6

Answers

The value of a if the point (–4, a) is also on the line is -6

What is the value of a if the point (–4, a) is also on the line?

If a line passes through the point (4, –2) and has a slope of 1/2, its equation can be written in point-slope form as:

y - (-2) = 1/2(x - 4)

Simplifying the equation gives:

y + 2 = 1/2x - 2

To find the value of a, substitute x = -4 and y = a into the equation:

a + 2 = 1/2(-4) - 2

a + 2 = -4

a = -6

Hence, the value of a is -6

Read more about line equation at

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Question

A line passes through the point (4, –2) and has a slope of 1/2 What is the value of a if the point (–4, a) is also on the line?

Joann works in a publicity office at the state university. she is paid $ 13.00 $13.00 an hour for the first 35 35 hours she works each week and $ 19.50 $19.50 an hour for every hour after that. if she makes $ 650.00 $650.00 one week, how many hours did she work?

Answers

She works 45 hours that week. 13*$35=$455. $650-$455=$195. $195/$19.5=10.  35+10=45

A rectangle is cut in half along the diagonal to form a triangle. if the area of the triangle is (2x + 10) cm^2, what is the area of the rectangle? Please provide steps and reason for your answer too!

Answers

Since it's literally cut in half, that means the triangle's area is literally half of the rectangle's area. Therefore, if we write it as
the triangle's area (a)=(1/2)*(b) (the rectangle's area) we can multiply 2 to both sides to get 2*a=b. Since a is (2x+10), we can plug it in and use the distributive property (since we just can't add up variables and integers) to get 
2*(2x+10)=4x+20=b

A meteorologist was accurate 90% of the time, reporting accurately on 45 days. how many days of weather did he report? 50

Answers

50 is the answer.  50 x 90% = 45

4/5 - 2/7 find difference

Answers

the difference is 18/35

hope this is what u r looking for
Sorry about the shaky writing
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