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Active Calculus 1st Ed

Preview Activity 6.1.1.
Consider the functions given by \(f(x) = 5-(x-1)^2\) and \(g(x) = 4-x\text{.}\)
(a)
Use algebra to find the points where the graphs of \(f\) and \(g\) intersect.
(b)
Sketch an accurate graph of \(f\) and \(g\) on the axes provided, labeling the curves by name and the intersection points with ordered pairs.
(c)
Find and evaluate exactly an integral expression that represents the area between \(y = f(x)\) and the \(x\)-axis on the interval between the intersection points of \(f\) and \(g\text{.}\)
(d)
Find and evaluate exactly an integral expression that represents the area between \(y = g(x)\) and the \(x\)-axis on the interval between the intersection points of \(f\) and \(g\text{.}\)
(e)
What is the exact area between \(f\) and \(g\) between their intersection points? Why?