Please help for 15 points...............................

Answer:
-4
Step-by-step explanation:
When x increased by 1 units, y has decreased by 4 units. So it's -4.
Or if we use y1-y2/x1-x2
= 17 - (-3) / -2-3 = (17+3)/-5
20/-5 = -4
Answer:
-4
pick two points and divide the difference of the y coordinates by the difference of the x coordinates so:
(17-13)/(-2-(-1)) = 4/(-1) = -4