I Need Urgent Help With My Calc Hmwrk!!!?

Question

so here's the problem!!!

Find the area of the region under the curve (Down to the x-axis) y= 2x^2-7x+10 between x=-5 and x=1. Use right endpoint rectangles and show all steps to take the limit as the number of rectangles approaches infinity.

HELP!!!!

Answer 1

Basically what you'd do is sum up the rectangles whose width at the base is delta x and whose height is the function value at x. Here's some links that will help...
http://www.ugrad.math.ubc.ca/coursedoc/math101/notes/integration/area.html
http://www.delta.edu/pglutz/PDFFiles/areaundercurve.pdf
http://www.teacherlink.org/content/math/interactive/flash/integraltool/integral.html