7. The graph in red depicts $x^2 - 1$ and the graph in blue depicts $1 - x^2$. These graphs intersect at the points $(-1,0)$ and $(1,0)$. Find the integral of the enclosed region between the two graphs.
Added by Linda B.
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Since the two graphs intersect at (-1,0) and (10,0), we know that both graphs have a y-coordinate of 0 at these points. Let's assume the equation of the first graph is y = f(x) and the equation of the second graph is y = g(x). At (-1,0), we have f(-1) = 0 and Show more…
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