Practice Problem 1

Verbal description: A quadratic function has zeros at -1 and 5 and has a maximum in the first quadrant.

  1. On graph paper (print here if needed), sketch a graph of the described function.
  2. Write an equation that can be modeled by the description.
    3. Interactive popup. Assistance may be required.

    Check Your Answer

    y = -( x + 1 )( x - 5 )Close Pop Up
  3. Generate a table of values that could be modeled by the above.
    4. Interactive popup. Assistance may be required.

    Check Your Answer

    x

    y

    -1

    0

    0

    5

    1

    8

    2

    9

    3

    8

    4

    5

    5

    0
    Close Pop Up
  4. To check your answers, enter your equation into your graphing calculator, then look at the graph and the table to see that they each fulfill the description. See the resource section for help with graphing calculators.