The equation 4x2 - 24x + 4y2 + 72y = 76 is equivalent to

(1) 4 (x - 3) 2 + 4 (y + 9) 2 = 76

(2) 4 (x - 3) 2 + 4 (y + 9) 2 = 121

(3) 4 (x - 3) 2 + 4 (y + 9) 2 = 166

(4) 4 (x - 3) 2 + 4 (y + 9) 2 = 436

I know the answer is choice 1 but how do you get to that answer?

Question

Kate Harrell

10 September, 12:01

+2

Answers (1)

Know the Answer?

Rocco · Answer 1

You get the answer but doing the work

The equation 4x2 - 24x + 4y2 + 72y = 76 is equivalent to(1) 4 (x - 3) 2 + 4 (y + 9) 2 = 76(2) 4 (x - 3) 2 + 4 (y + 9) 2 = 121(3) 4 (x - 3) 2 + 4 (y + 9) 2 = 166(4) 4 (x - 3) 2 + 4 (y + 9) 2 = 436I know the answer is choice 1 but how do you get to that answer?