Question

What is the result of isolating y2 in the equation below?

(x - 2)^2 + y2 = 64

Answer 1

how would you isolate \(y_2\)?

Answer 2

no idea

Answer 3

i'm assuming it's\[\left( x-2 \right)^2+y_2=64\]

Answer 4

couldn't you subtract off the bit that isn't \(y_2\)?

Answer 5

these are my choices

Answer 6

A. y2 = -x2 + 4x + 60
B. y2 = -x2 + 4x + 4
C. y2 = 64 - x2
D. y2 = x2 + 4x + 60

Answer 7

it would be A?

Answer 8

okay, but let's start by doing what makes sense and then work towards the form they give.

what would you get if you subtracted (x-2)^2 from both sides and then expanded (multi[ied out) the (x-2)^2 and combined like terms?

Answer 9

A is correct...good job!