Question

Average rate of change...

Answer 1

When you plug x1 into the function, it gives us some y1 as a result.
When you plug x2 into the function, it gives us some y2 as a result.

\(\large\rm y=3x^2+7x\)
So what y1 value do you get when you plug in x1?
\(\large\rm y_1=3(4)^2+7(4)\)

Answer 2

Thank you!