Question

What is the distance between the points (-4,5) and (8,9)?

Answer 1

d ≈ 12.65

Steps:

d² = (8-(-4))²+(9-5)²

d² = (8+4)² + 4²

d² = 12² + 4²

d² = 144 + 16

d² = 160

d = √160

d ≈ 12.65