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.
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?
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?