PC.F-BF.B.4C: Verify by composition that one function is the inverse of another.
PC.F-BF.B.4D: Produce an invertible function from a non-invertible function by restricting the domain.
Find the inverse of a function.
Restrict the domain of a function so that its inverse is also a function.
The function F = (9/5)C + 32 converts a given temperature in Celsius to its Fahrenheit equivalent. Find a function that converts from Fahrenheit to Celsius by solving the given function for C.