Philip P. answered • 02/18/15

Tutor

5.0
(472)
Effective and Patient Math Tutor

Use the distance formula between the two points:

d

^{2}= (x_{B}-x_{A})^{2}+ (y_{B}-y_{A})^{2}5

^{2}= (4-7)^{2}+ (y-9)^{2}25 = 9 + (y-9)

^{2}16 = (y-9)

^{2}√16 = √(y-9)

^{2}±4 = y - 9

**y = 5 and 13**

Michael J.

02/18/15