The figure shows the graph of y equals ax squared plus bx plus c. Suppose that the points left parenthesis negative h comma y 0 right parenthesis comma left parenthesis 0 comma y 1 right parenthesis comma and left parenthesis h comma y 2 right parenthesis are on the graph. The area enclosed by the​ parabola, the​ x-axis, and the lines x equals negative h and x equals h may be given by the formula below. Find the area enclosed by f left parenthesis x right parenthesis equals x squared plus 2 x plus 8 comma the​ x-axis, and the lines x equals negative 4 and x equals 4. Area equals StartFraction h Over 3 EndFraction left parenthesis y 0 plus 4 y 1 plus y 2 right parenthesis