Question 31429
Use the formula d^2=(x2-x1)^2 + (y2-y1)^2

So, d^2 = [3-(-4)]^2 + [(-4)-5]^2
=>d^2 = 7^2 + 9^2
=>d^2 = 49+81
=>d^2 = 130
=>d = sqrt(130)

The distance between two given points is sqrt(130) units