Inverse Function For Constant Rate
A certain bathtub fills at a rate of 1.5 inches every minute when the water is on full power. What function could be used to find how long it would take to fill the tub to a specific height?
A
None of these are correct
B
f(x) = -1.5x
C
f - 1/1.5 = x
D
f - 1 = x/1.5
E
All of these are possible correct answers.