Question: make a sign diagram for the derivative of the function Make a sign diagram for the derivative of the function. 1(x) = x + 4x3-
make a sign diagram for the derivative of the function

Make a sign diagram for the derivative of the function. 1(x) = x" + 4x3- 8x2+ 60 (( x ) ? Y X 0 (( x ) ? " X 0 ( ( x ) ? " x 0 (Xx) 7 4 x 0 ( x) ? ~ X 0 ( ( x ) ? ~ x 0 ( ( x ) 74 X 0 X =0 X x = 1 X X =4 X Find all open intervals of increase and decrease. (Enter your answers using interval notation.) increase X decrease X Sketch the graph of the function
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