Question

Which equation is the inverse of y = 7x2 – 10?

Answer 1

Answer: B on Ed.

Explanation:

Answer 2

Just find "x" from this equation :


`y=7x^2-10 \\ \\ 7x^2 = y+10 \qquad /:7 \\ \\ x^2=(y+10)/(7) \qquad /\sqrt{} \\ \\ x=\pm \sqrt{(y+10)/(7)}`

Then change "x" and "y" and You've got an answer:


`y=\pm \sqrt{(x+10)/(7)}`