Question

plz tell Q1 c part branliest​

Answer 1

By applying Distance formula, Distance comes out to be the square root of

(5+7)² + (y+3)² = 13²

12² + (y+3)² = 13²

So, y+3 will be either 5 or -5.

If y+3 = 5

Then, y=2

If y+3 = -5

Then, y = -8

Answer 2

Step-by-step explanation:

by distance formula

13=√(5+7)²+(-3-y)²

squaring on both sides

169=144+9+y²+9y

25=y²+9y+9

0=y²+9y-16

0=y²