What is the inverse of the given function? y = 7x2 - 3?

Question

asked Mar 5, 2018 131k views

2 Answers

Xhinoda · Answer 1 · 2018-03-11T14:34:15+0000

Answer:

y = ±
√((x+3)/7)

Explanation:

Given: y = 7x^2 - 3

To find inverse function follow the steps.

Step 1: Replace x by y and y by x, so w get

x= 7y^2 - 3

Step 2: Write y interms of x.

7y^2 = x + 3

Dividing both sides by 7, we get

y^2 = (x + 3)/7

To find y, take the square root on both sides

y = ±
$\sqrt{(x+3)/(7) }$

Hope this will helpful.

Thank you.