Question
Find the area under the graph of fover the interval [1,5]$$f(x)=\left\{\begin{array}{lll}2 x+1, & \text { for } & x \leq 3 \\10-x, & \text { for } & x > 3\end{array}\right.$$
Step 1
The function changes at x=3, so we need to split the integral into two parts: one from 1 to 3 and the other from 3 to 5. Show more…
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