Shape of a Graph

Practice Curve Sketching Examples Here

  1. Consider \( f(x) = x^3 + 3x^2 - 9x + 10 \). Answer the following using calculus.  solution

    (a) Find the intervals on which \( f \) is increasing or decreasing.

    (b) Find the \(x\)-values where \( f \) attains its local maximum and minimum values.

  2. Find the local maximum and local minimum values of \( f(x) = x^2 e^x \).  solution

  3. Consider the function \( f(x)=5x^{1/3} - x^{5/3} \). Find the intervals where \( f \) is increasing or decreasing. Also find the local maxima and minima.  solution

  4. Let \( f(x) = x^3 + 3x^2 - 24x + 5 \). Answer the following.  solution

    a. Find all the critical numbers of \( f \).

    b. Find the intervals on which \( f \) is increasing or decreasing.

    c. Find the local maximum and minimum values of \( f \).

    d. Find the intervals on which \( f \) is concave up or down.

    e. Find the inflection points of \( f \).

  5. Consider \( f(x)=2x^3 - 3x^2 \). Answer the following using calculus.  solution

    a. Find the intervals on which \( f \) is concave up or down.

    b. Find the inflection points of \( f \).

  6. Consider the function \( f(x)=x + x^2 - x^3 \). Answer the following using calculus.  solution

    1. Find the intervals on which \( f \) is concave up or concave down.

    2. Find the \(x\)-coordinate(s) of inflection point(s) of \( f \).

  7. (Two problems) Use the graph of \( y=f'(x) \) below to answer the following questions about the function \( f \).  Solution of graph ASolution of graph B

    (A)

    Graph A of f'(x)

    (B)

    Graph B of f'(x)

    (a) On what interval(s) is the graph of \( f \) increasing or decreasing?

    (b) Find the \(x\)-value(s) where \( f \) has a local maximum or minimum.

    (c) On which interval(s) is the graph of \( f \) concave up or concave down?

    (d) State the \(x\)-coordinate(s) of inflection point(s), if any.

  8. The graph of the derivative function \( y=f'(x) \) is given below. Answer the following questions about \( f(x) \).  solution

    Graph of f'(x)

    a. Find all the critical numbers of \( f \).

    b. On what intervals is \( f \) increasing or decreasing?

    c. Find the \(x\)-value(s) where \( f \) has a local maximum or minimum.

    d. On which interval(s) is \( f \) concave up or concave down?

    e. State the inflection point(s), if any.

  9. The graph of the second derivative \( f''(x) \) is shown. Find the \(x\)-coordinates of the inflection points of \( f \).  solution

    Graph of f''(x)