10. Find the slope of each line.

a. A line that is parallel to the graph of y 1 = x +7.
b. A line that is perpendicular to the graph of y = -2x-3.

3 answers

a. The slope of the line y = 1x + 7 is 1. Since a line that is parallel to this graph will have the same slope, the slope is 1.

b. The slope of the line y = -2x - 3 is -2. Since a line that is perpendicular to this graph will have a slope that is the negative reciprocal of -2, the slope is 1/2.
shorten them both
a. The slope is 1.

b. The slope is 1/2.