Question

for each graph, decide if the two lines are parallel, perpendicular, or neither. graph 1: parallel perpendicular neither graph 2: parallel perpendicular neither graph 3: parallel perpendicular neither graph 4: parallel perpendicular neither

Explanation:

Step1: Recall definitions

Parallel lines never intersect, perpendicular lines meet at 90 - degree angles.

Step2: Analyze Graph 1

Lines meet at 90 - degree angles, so perpendicular.

Step3: Analyze Graph 2

Lines intersect not at 90 - degree, not parallel, so neither.

Step4: Analyze Graph 3

Lines intersect not at 90 - degree, not parallel, so neither.

Step5: Analyze Graph 4

Lines never intersect, so parallel.

Answer:

Graph 1: Perpendicular
Graph 2: Neither
Graph 3: Neither
Graph 4: Parallel