Question

What is the distance between the points (2,-4) and (6,4)

Answer 1

Sqrt 80 = 4 sqrt 5

Explanation:

Sqrt [(6-2)^2 + (4 - - 4)^2

= sqrt. (4^2 + 8^2) = sqrt (16 + 64)

= sqrt 80

= 4 sqrt 5