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Order Id 910319 # 8 Givenπ(π₯)= {π₯+ 1,β2 < π₯ < 3 βπ₯,π₯ β₯3 Plot x+1 from point -2 to 3: x+1 is a straight line with m=1, and y-intercept =1 x-2-10123 f(x)=x+1-101234 Plot f(x)=-x from poin 3 to β: The graph is a straight line with m=-1 any y-intercept=0 x3410 f(x)=-x-3-4-10 #12
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Ifπ»(π₯)= β5π₯2β3π₯ 3 π»(π₯)=(π β π)(π₯), thenπ(π₯)=βπ₯ 3πππ π(π₯)= 5π₯2β3π₯ #21-24 is done using the figure below From the graph,π¦=(π₯+ 2)(π₯ β2)(π₯ 4), from the figure, the following can be deduced: #21: intervals is the function increasing (ββ, β1.155) βͺ (1.155, β) #22: intervals is the function decreasing (β1.155, 1.155) #23: local minimum of the function (1.155, β0.77) #24: local maximum of the function (β1.155, 0.77)