You can
put this solution on YOUR website!Let's see...the two figures intersect at (0,3) and at (7,52)...we have to integrate the difference of the functions from x = 0 to x = 7, so we have
Area = Integral from 0 to 7 of

= Integral from 0 to 7 of (7x - x^2)
=

evaluated from 0 to 7...
=