Question: A linear spline s(t) has knots at 1, 2, and 3. Also, s(0) = 1, s(1) = 1.3, s(2) = 5.5, s(4) = 6, and

A linear spline s(t) has knots at 1, 2, and 3. Also, s(0) = 1, s(1) = 1.3, s(2) = 5.5, s(4) = 6, and s(5) = 6.
(a) What is s(0.5)?
(b) What is s(3)?
(c) What is ∫24 s(t) dt?

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