$15 per hour
For 9 hours the total cost is $195
Total Cost = One time fee + $15 per hour times the number of hours
If y is the total cost and x is the number of hours, we can write:
y = One time fee + 15x
They say that when x = 9, y = 195:
195 = One time fee + 15(9) = one time fee + 135
One time fee = 195 - 135 = 60
One time fee = 60
So the equation would be:
y = 60 + 15x
Th standard form of a line in point and slope is y = mx + b
In this case: y = 15x + 60
Answer:
y = 15x + 60