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tatiyna
3 years ago
11

What is the first step in finding the inverse of a function?

Mathematics
1 answer:
Taya2010 [7]3 years ago
8 0
The first thing you would do is switch the x and y (B).

For example, to find the inverse of y = 2x + 8:

1. Swap x and y
    x = 2y + 8

2. Solve for y (set the equation equal to it):
    x - 8 = 2y
    y = (x - 8) ÷ 2
    f^{-1}(x) = 1/2x - 4
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Pls help if u know math
Minchanka [31]

Answer:

x = 4

y = 11

Step-by-step explanation:

Set  your formula as follow:

2x+3=3x-1 -> 2x+3-3x=-1  -> -x+3 = -1 -> -x=-4 -> x=4

now substitute x for 4 in the following

y-2=2(4)+1 -> y-2=8+1 ->y-2 = 9y -> y=11

6 0
3 years ago
Read 2 more answers
A book has 12 chapters. The mean length of the chapters is 40 pages. How many total pages are there in the 12 chapters?
amm1812

Answer:

480

Step-by-step explanation:

Important Information:

A Book Has 12 Chapters.

The Mean length of the chapters is 40 pages.

Question to Answer:

How many total pages are there in the 12 chapters?

Explanation/Solution:

Let's assume that the total number of pages in the book is "x" pages.  

To find the mean (average) we divide the total "x" by 12 because there are 12 chapters in the book, which would equal to 40.  

\frac{x}{12}=40

Multiply both sides by 12...

x = 480

Hence, The total number of pages in the 12 chapters is 480.

7 0
2 years ago
When A=300, solve the equation x^2 - 40x + A = 0 by factorising​
Svet_ta [14]

Answer :

\:

(x–30) (x-10)

Given equation :

• x² - 40x + A

when A = 300

1. Use the sum-product pattern

x²- 40x + 300

x²−10x−30x+300

2. Common factor from the two pairs

x² – 10x-30x+300

x(x−10)−30(x−10)

3. Rewrite in factored form

x(x−10)−30(x−10)

(x-30) (x-10)

3 0
2 years ago
3n + 7 - 11n - 31 = 160
Otrada [13]

Answer:

n = -23

Step-by-step explanation:

3n + 7 - 11n - 31 = 160

Step 1: Combine like terms

-8n - 24 = 160

Step 2: Simplify

-8n = 184

n = -23

6 0
3 years ago
Read 2 more answers
Which equation represents the line that passes through points (0, 6) and (2, 0)?
poizon [28]
Slope = 6/-2 = -3
b = 6

equation
y = -3x + 6

hope it helps
4 0
3 years ago
Read 2 more answers
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