Question

A(4, −3), B(−8, 2), the length of AB is ______.

Options

• 13 units

• 15 units

• 17 units

• 20 units

Answer 1

A(4, −3), B(−8, 2), the length of AB is 13 units.

Explanation:

Step: Use the distance formula

`"Distance" = sqrt((x_2 − x_1)^2 + (y_2 − y_1)^2)`

`"Distance" = sqrt((−8 − 4)^2 + (2 − (−3))^2)`

`"Distance" = sqrt((−12)^2 + (5)^2)`

`"Distance" = sqrt(144 + 25)`

Distance = 13