Sketch a curve with the following properties.

f' < 0 and f" < 0, for x < -1
f' < 0 and f" > 0, for -1 < x < 2
f' > 0 and f" > 0, for 2 < x < 8
f' > 0 and f" < 0, for 8 < x < 10
f' > 0 and f" > 0, for x > 10