Question

Calculate the distance between the points Q = (2, -1) and K = (6,-9) in the coordinate plane.

Round your answer to the nearest hundredth.

Answer 1

Sqrt 80 = 8.94

Explanation:

d = sqrt[(x-x)^2 + (y-y)^2]

d = sqrt [(6-2)^2 + (-9 - - 1)^2]

d = sqrt [(4)^2 + (-8)^2]

d = sqrt (16 + 64)

d = sqrt 80

d = 4 sqrt 5 = 8.94