Answer:
Step-by-step explanation:
to find the slope, we can take any two points, and find the slope between then
e.g.
(0, -3) and (20, 2) => [tex]m = \frac{y_2-y_1}{x_2-x_1} = \frac{2-(-3)}{20-0} = \frac{1}{4}[/tex]
now we can test other points, and if the slopes are consistent, we can determine the overall slope
(4, -2) and (16, 1) => [tex]m = \frac{y_2-y_1}{x_2-x_1} = \frac{1-(-2)}{16-4} = \frac{1}{4}[/tex]
(8, -1) and (12, 0) => [tex]m = \frac{y_2-y_1}{x_2-x_1} = \frac{0-(-1)}{12-8} = \frac{1}{4}[/tex]
yep, it's consistent
the slope is [tex]\frac{1}{4}[/tex]
