1. The problem statement, all variables and given/known data Estimate the area under the graph of f(x)=3+x^2 from x=−1 to x=2 using six approximating rectangles and right endpoints. 3. The attempt at a solution I've tried this multiple times but can't seem to get it, can someone tell me if i am on the right track? i have summation [3/6(3+(-1+i/6)^2)] where i starts at -1 and increases by .5 passing through (-1,-0.5,0,0.5,1,1.5) (I'm not sure about how the i increases) Can anyone tell me what i am doing wrong?