Question

what is the result in isolating y^2 in this equation (x+4)^2 +y^2=22
A) y^2= -x^2-8x+16
B) Y^2=22-x^2
C) y^2=x^2-8x+6
D) y^2= -x^2-8x+6

Answer 1

Re-arrange it; bring the (x + 4)^2 over on to the other side. What do you get?

Answer 2

y^2=22 (x+4)^2 ?

Answer 3

still there ?

Answer 4

22-(x+4)^2

Answer 5

okay so from 22-(x+4)^2, what step comes next ?

Answer 6

thats it.. u isolated y^2

Answer 7

but thats not one of the answers they give me

Answer 8

now do .... 22 - (x+4)(x+4) solve

Answer 9

@BluEyedAngel

Answer 10

get it?

Answer 11

it will be D ?

Answer 12

bam!

Answer 13

thank you !!!

Answer 14

Welcome