Question

What is the length of AB? Round to the nearest hundredth.

Answer 1

A(-1, 3) => x1 = -1, y1 = 3
B(5, 1) => x2 = 5, y2 = 1

|AB| = sqrt((x1-x2)^2 + (y1-y2)^2)

Answer 2

A is at (-1, 3)
B is at (5, 1)

so

\[AB = \sqrt{(-1 - 5)^2 + (3-1)^2} = \sqrt{36 + 4} = \sqrt{40} = \sqrt{4}\sqrt{10} = 2\sqrt{10} \approx 6.32\]

Answer 3

thanks :)