Answer:
Explanation:
to find the slope, we can take any two points, and find the slope between then
e.g.
(0, -3) and (20, 2) =>
now we can test other points, and if the slopes are consistent, we can determine the overall slope
(4, -2) and (16, 1) =>
(8, -1) and (12, 0) =>
yep, it's consistent
the slope is