Question

graph 1
parallel
perpendicular
neither
graph 2
parallel
perpendicular
neither
graph 3
parallel
perpendicular
neither
graph 4
parallel
perpendicular
neither

Explanation:

Step1: Recall line - relationship definitions

Parallel lines never intersect, perpendicular lines intersect at a 90 - degree angle.

Step2: Analyze Graph 1

The lines intersect at 90 degrees, so they are perpendicular.

Step3: Analyze Graph 2

The lines will intersect, not parallel or perpendicular.

Step4: Analyze Graph 3

The lines will intersect, not parallel or perpendicular.

Step5: Analyze Graph 4

The lines never intersect, so they are parallel.

Answer:

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