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Mathematics 16 Online
OpenStudy (anonymous):

The area of the region between the graph y=3x^2+2x and the x axis from x=1 to x=3 is?

OpenStudy (anonymous):

integrate top curve minus bottom curve. the bottom curve is the x axis itself (y=0). the top curve is probably 3x^2 + 2x, so integral 3x^2 + 2x - 0

OpenStudy (dumbcow):

use power rule here for integrating x^n = n*x^n-1

OpenStudy (anonymous):

what about the x=1 and x=3?

OpenStudy (anonymous):

thats the upper and lower limits

OpenStudy (anonymous):

so i plug that in and add them both or subtract?

OpenStudy (anonymous):

You have to draw a rough draft to get an idea what you are doing.

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