Question

Consider the line 4x + 7y=-1.

What is the slope of a line perpendicular to this line?
What is the slope of a line parallel to this line?

Answer 1

1. the slop of a line perpendicular to that line is: 7/4.

2. the slope of a line parallel to that line is: - 4/7

Explanation:

To get the perpendicular line you have to find the negative reciprocal of the slope of the original line. and lines with the same slope are parallel.