Question

Line AB formed by (-4,7) and (-2,6)Line CD formed by (2,-2) and (-8,3)Parallel perpendicular or neither

Answer 1

For this question, we compute the slope of each line. To compute the slope of the lines we use the following formula:

$m=\frac{y_1-y_2}{x_1-x_2}$

Line AB:

$m_{AB}=\frac{7-6}{-4+2}=\frac{1}{-2}=-\frac{1}{2}$

Line CD:

$m_{CD}=\frac{-2-3}{2+8}=\frac{-5}{10}=-\frac{1}{2}$

Therefore we conclude that lines AB and CD are parallel.