Problema Solution

Let f be the linear function defined by f(x)=-4x+3. Find the average rate of change in f over the following intervals [-3,2], [-100,58], [1.8,20.1], [t,t+7]

Answer provided by our tutors

the average rate of change in f over any interval is going to be -4


if any of those intervals calculate out (rise/run) to a different slope, then "f(x)=-4x+3" is not the correct linear function


by definition of a linear equation, average rate of change is -4 over any interval