The temperature in a room is changing at a steady rate. If x is the number of minutes since noon, the

Question

temperature was -4° C when x = -3 minutes and the temperature was 6° C when x = -5 minutes. Find the rate
of change in temperature in degrees per minute.

The answer is -5. How do i do this

Answer 1

you want the slope of the line through

(-3,-4) and (-5,6)

That is

10/-2 = -5

Not quite sure why the negative time values. I guess that means minutes before noon.