Answer:
slope = -1.75
Step-by-step explanation:
If there are two points on a coordinate plane with point (x1,y1) and (x2,y2) then
slope of those two points are
slope = (y2-y1)/(x2-x1)\
________________________________________________
Given
points (1,9) and (-3, 16)
thus, slope = (16-9)/ (-3 -1)
slope = 7/-4 = -7/4 = -1.75
Thus, slope is -1.75
