Register
1A) Find the inverse of y = 3x - 7.
125k views
3 votes
1A) Find the inverse of y = 3x - 7.

User AM Douglas
by
7.9k points

2 Answers

1 vote
y = 3 x - 7

Solve 3x - 7 = y for x :

3 x - 7 = y

Add 7 to both sides:

3x-7+7=y+7

Refine : 3x = y +7

Divide both sides by 3 :

3 x / 3 = y+7 / 3

Refine : y = y+7 / 3

Subsititute y = x

therefore inverse of y = 3x - 7 is:

x+7 / 3

hope this helps!
User Muhabutti
by
7.7k points
3 votes
f(x) = 3x - 7. you replace Y with f(x) because f(x) is the inverse of y
User Mackovich
by
8.3k points
← Prev Question Next Question →

No related questions found

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Other Questions

What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
The cost of 5 similar digital cameras and 3 similar video cameras is 3213. Each video camera costs 4 times as much as each digital camera. John buys a digital camera and a video camera. How much does he
9/10 divided by (1/10 plus 2/5)
Link Copied!