Question

If A = (-2, -4) and B = (-8, 4) what is the length of AB

Answer 1

10

Explanation:

Answer 2

10

Explanation:

`A = (-2, -4) \\ B = (-8, 4) \\ d = (\sqrt{( {x_2 - x_1})^(2) + ({y_2 - y_1})^(2) }`

`x_1 = - 2 \\ y_1 = - 4 \\ x_2 = - 8 \\ y_2 = 4`

`d = \sqrt{ {( - 8 - ( - 2)}^(2) + {(4 - ( - 4))}^(2) } \\ d= \sqrt{ {( - 6)}^(2) + {8}^(2) } \\ d = √(36 + 64) \\`

`d = √(100) \\ d = 10`