How to do this I’m lost

QAmmunity.org

My account
Edit my Profile
Private messages
My favorites

Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question

asked Nov 10, 2019 58.4k views

4 votes

How to do this I’m lost

Mathematics
middle-school

IgorGanapolsky asked

by IgorGanapolsky

6.1k points

0 Comments

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

6 votes

$y=9-x^2\ \ \ |-9\\\\y-9=-x^2\ \ \ \ |change\ the\ signs\\\\x^2=9-y\to x=√(9-y)$

$We\ have\ y^(-1)=√(9-x)\\\\D:\\9-x\geq0\to x\leq9\\\\x\in\left(-\infty;\ 9\right>$

Marsel answered Nov 17, 2019

by Marsel

6.0k points

0 Comments

Please log in or register to add a comment.

Ask a Question

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

6.6m questions

8.8m answers

0 Comments

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

0 Comments

Please log in or register to add a comment.

Other Questions