Concavity

Over what intervals will the second derivative of f(x) be negative?

• $\left(-\infty,-1\right)$
  

• $\left(-\infty,1\right)$

• $\left(1,\infty\right)$

• $\left(-1,1\right)$

What will the zero(s) of the derivative f(x) be?

• 4 and 2

• 1

• 0 and 2

• 1 and 2

Over what intervals will the second derivative of f(x) be positive?

• $\left(-\infty,1\right)\ and\ \left(1,\infty\right)$

• $\left(1,\infty\right)$

• $\left(-1,\infty\right)$

• $\left(-1,\infty\right)$

Over what intervals will the derivative of f(x) be negative?

• $\left(0,2\right)$

• $\left(-\infty,-1\right)$

• $\left(-\infty,0\right)\ and\ \left(2,\infty\right)$

• $\left(-1,2\right)$

What will the zeros of the second derivative of f(x) be?

• 1 and 2

• -1 and 2

• 4 and 0

• 0 and 2