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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §5.1 The Idea of the Integral, #7 · Calculus · Integrals

Suppose … for … and … for

Suppose $v (x) = 3$ for $x < 1$ and $v (x) = 7$ for $x > 1$ . Find the area $f (x)$ from $0$ to $x$ , under the graph of $v (x)$ . (Two pieces.)

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §5.1 The Idea of the Integral, #7

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