Question

Determine whether each pair of lines is parallel, perpendicular, or neither.

Answer 1

7: Perpendicular

8: Neither

9: Parallel

Explanation:

We can compare the lines' slopes to answer the given question. Perpendicular lines have opposite reciprocal slopes and parallel lines have the same slope.

We can use the "rise over run" method to answer these questions. We begin at a coordinate point on the line, count up/down, then divide by the left/right to another point on the graph.

See attached for the work.