Lesson 23 Practice

  1. Greatest Integer Function.

    [ [-9.9] ] = -10 [ [-9.1] ] = -10 [ [-9] ] = -9

    [ [9] ] = 9 [ [9.1] ] = 9 [ [9.9] ] = 9

  2. Match the Graphs.

    C f(x) = |x|

    A f(x) = x

    D f(x) = [ [x] ]

    F f(x) = - |x|

    B f(x) = -x

    E f(x) = - [ [ x ] ]

  3. Match the Pieces 1.

    x^2-4, <, 0

    4, 0, \le, 4

    2x-4, 4

  4. Match the Pieces 2.

    x+3, 0

    3, 0, \le , 4

    -2x+1, >, 4

  5. Challenge: Intervals for a Step Function.

    f(x) = -2 for 1 < x \le 2

    f(x) = 0 for -1 < x \le 0

    f(x) = 2 for -3 < x \le -2

  6. Which Type of Function?

    D___________C

    __A___E___B__

  7. Which are Step Functions?

    your earnings if you are paid $10 per hour...

    number of buses to take students to a sports game...

    the cost of first class postage...

  8. Piecewise Functions.

    A piecewise function is a function which is defined by two or more functions on separate intervals of a graph

    the middle graph and the right graph