160k views
1 vote
Which equation is the universe of y=9x^2-4

User Soywod
by
8.8k points

2 Answers

3 votes

Answer:


y = (√(x+4) )/(3), \ y = -(√(x+4) )/(3)

Explanation:

To find inverse we replace and y first.


y = 9x^2 - 4 \ becomes \ x = 9y^2 -4


Then \ solve \ for \ y\\\\9y^2 = x+ 4\\\\y^2 = (x+4)/(9)\\\\y = \pm \sqrt{(x+4)/(9)} \\\\y = \pm {(√(x+4))/(3)

User Max Oriola
by
8.6k points
2 votes

Explanation:

keep in mind that, to get the inverse expression of any relation, we start off by doing a quick switcheroo on the variables, and then solve for "y", so let's do so,

Which equation is the universe of y=9x^2-4-example-1
User Anjali Shah
by
8.2k points

No related questions found

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

9.4m questions

12.2m answers

Categories