In this question, you will sketch the graph of the cubic function below. The derivative of this function can be shown to equal This derivative can be...

xfx

fx

 f(x) is decreasing on (-5,9)

 f(x) is decreasing on (-,-5)

 f(x) is decreasing on (9,)

 f(x) is increasing on (-5,9)

 f(x) is increasing on (9,)

 f(x) is increasing on (-,-5)

xfx

x

fx

 f(x) is concave upwards on (-,2)

 f(x) is concave downwards on (2,)

 f(x) is concave upwards on (2,)

 f(x) is concave downwards on (-,2)

y

y

x

x

Middle x intercept :  

Largest x intercept :