Question

A deep freezer has a temperature of -6°C when it is turned off.

The temperature then rises at 1.2°C per minute.

Find y, the current temperature of the freezer after x minutes. Fill in the blank below to complete the equation:
y =

Answer 1

y = -6 + 1.2*x is the answer I would use, but see the note below.

Explanation:

Let x = the number of minutes.

Let y = the temperature at any given time.

y = -6 + 1.2*x

This is the equation that you would use if you were calculating y with a calculator. If you are in a chemistry class it should be written as

y = - 6°C + 1.2°x/ min