Consider the graph of the functionfxshown Estimate the integ

Consider the graph of the functionf(x)shown

Estimate the integral: integral 0--->7 f(x)dx=____________?

B.If F is an antiderivative of the same functionfandF(0)=40, estimateF(7): F(7)=__________?

Please explain/ show work for rating

using the rule of graph paper and by counting only the squares which has been occupied more than half , area=-8 b. F(7)=32