Answer:
The money earned increases by $15 for each hour worked.
Step-by-step explanation:
Simply find the slope by using the formula:
m = y2 - y1 / x2 - x1
m = 165 - 105 / 9 - 5
m = 60 / 4
m = 15
f(x) = -4x + 12
y - 2x = -6x + 12
+2x +2x
y = 5x - 4
for the x values..
y = -4
y = 1
y = 6
