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5-15.

Write the second derivative with respect to for each function.

  1. This is the equation of a parabola. The nd derivative represents the concavity of the original equation.
    Is concave up, concave down or neither?

  2. is a linear equation.
    represents its concavity.
    Is a straight line concave up, concave down or neither?

  3. Use the Power Rule.