Answer:
y = -5x -1
Step-by-step explanation:
For this function, the outputs decrease by 5.
9 - 5 = 4
4-5 = -1
-1 - 5 = -6
etc.
This is the rate of change. It's constant and so it linear. Then the slope is -5.
Use the form y=mx+b for the function rule.
m = -5 and b = -1 (since b is the y-intercept when x=0).
y = -5x - 1
