Answer:
$0.004 per gallon
Step-by-step explanation:
Given:
Service Fee= $22
Fixed rate per gallon= m
Water Consumed= 2256 gallons
Total bill charged= $31.02
Now by computing the equation we get

Substituting data we get




Rounding off above value we get
per gallon
Is there a picture combined to this
Steps to finding the inverse:
1. Replace f(x) with y.
2. Swap x and y.
3. Solve the equation for y.
f(x) = 2x - 10
1. y = 2x - 10
2. x = 2y - 10
3. Add 10 to both sides
x + 10 = 2y
Divide both sides by 2
(x + 10)/2 = y
y = (x + 10)/2
f^-1(x) = (x + 10)/2