Posted by **Anonymous** on Wednesday, December 8, 2010 at 12:32pm.

Find the area of the region under the graph of the function f on the interval [-1, 2].

f(x) = 6x + 1

- calculus -
**Reiny**, Wednesday, December 8, 2010 at 1:02pm
Your question is not clear at all.

When you say "under" the graph of

f(x) = 6x+1, the region would be infinitely large.

You will need to close it.

Is it bounded by the x-axis?

If so according to your interval part would be below the x-axis and part would be above it.

Make a graph to see what I mean, then clarify your question.

BTW, why would you need Calculus to find the area of a region bounded by straight lines?

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