Find two numbers y such that the distance from (-3, 2) to (5, y) is 10.?

Question

Find two numbers y such that the distance from (-3, 2) to (5, y) is 10.

Answer 1

lol, i just answered this question about 5 minutes ago.  You should probably check yahoo answers before you post the same question up...but I'll just paste my answer here again anyway.

To solve this, substitute known values into the distance formula:

d=rad((x1-x2)^2+(y1-y2)^2)

x1=-3

x2=5

y1=2

y2=?

10=rad((-3-5)^2+(2-y)^2)

100=(-8)^2+(2-y)^2

100=64+(2-y)^2

36=(2-y)^2

6=2-y

y=3 This is the only whole number y that satisfies that condition.