Question

Find the distance between the points given. (-1, -1) and (1, 3)

Answer 1

Given two points
`A = (A_x, A_y)` and
`B = (B_x, B_y)`, you can compute their distance using the Pythagorean theorem: you have

`AB = √((A_x-B_x)^2 + (A_y - B_y)^2)`

In your case, you have

`AB = √((-1-1)^2 + (-1-3)^2) = √((-2)^2+(-4)^2) = √(4+16) = √(20) = 2√(5)`