The Fahrenheit and Celsius temperature scales are linearly related. A change of one degree Celsius is a change of 1.8 degrees Fahrenheit. The freezing point of water is 0° Celsius or 32° Fahrenheit. Find the formula for computing the Fahrenheit temperature $F$ given the CelciusCelsius temperature $C$.
[Probably most useful as an exercise in the US, where the students have heard of Fahrenheit.]