Cracking The Ap Calculus ab Exam 2018

(Marvins-Underground-K-12) #1

That wasn’t so hard, was it? Don’t worry. The process gets more complicated, but the idea remains the
same. Now let’s generalize this and come up with a rule.


If  a   region  is  bounded by  f(x)    above   and g(x)    below   at  all points  of  the interval    [a, b], then    the area
of the region is given by

    [f  (x) =   g(x)]   dx

Example 1: Find the area of the region between the parabola y = 1 − x^2 and the line y = 1 − x.


First, make a sketch of the region.


To find the points of intersection of the graphs, set the two equations equal to each other and solve for x.

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