Lesson 20 Practice

  1. Behavior I. Decreasing, Increasing, Minimum
  2. Behavior II. a) Increasing, Increasing b) Multiply by a negative number
  3. Identify by Shape.

    D __ f(x)=x^5-2x^2+5

    B __ g(x)=5x^2

    A __ h(x) = -8x^4-5

    C __ k(x)=-6x^3+2x^2-x

  4. Multiply by -1. d)
  5. Left & Right Behavior.

    low ______ low

    ____ high __ low

    ____ high ______ high

  6. Zeros. a) 0 b) -9 c) 0 d) Yes, 3, -1
  7. Zeros, Factors and x-Intercepts. a) 1,-1,3,-3,9,-9 b) -3,1,3 c) (x-1)(x+3)(x-3) d) (-3,0);(1,0);(3,0)