Graphing Polynomial Functions Review

• (-2.55, 0), (2.55, 0)
• (-3, 0), (-2, 0), (2, 0), (3, 0)
• (0, 36)
• (0, -3), (0, -2), (0, 2), (0, 3)

Where is the graph increasing?

• (-∞, -2.55) U (2.55, ∞)

• (0, ∞)

• (-2.55, 0) U (2.55, ∞)

• (-6.25, 36)

State the interval(s) of increase.

• (0, -0.5) ∪ (1, ∞)

• (0, -5.063) ∪ (0, ∞)

• (-∞, 0) ∪ (-5.063, 0)

• (-∞, -2) ∪ (-0.5, 1)

State the interval(s) of decrease.

• (-3,0) ∪ (3, ∞)

• (-∞, -10.392 ⋃ (10.392,∞)

• (-∞, -1.732) ⋃ (1.732,∞)

• (-∞, -3) ∪ (0,3)

Match each polynomial function to its graph.

• 
• 
• 
• 

Identify the relative maximum:

• (0, 3)

• (4, 1)

• (3, 0)

• (1, 4)

In the above graph, which root has a multiplicity of 2?

• -1

• -3

• -120

• 4

Describe the end behavior of
f(x) = -5x⁴ - 2x² + 8

• Left side: Rises  
   Right side: Rises

• Left Side:  Rises
  Right side: Falls

• Left side: Falls
  Right side: Rises

• Left side: Falls
  Right side: Falls

• Even Degree
  - Leading Coeff.
• Even Degree
  + Leading Coeff.
• Odd Degree
  - Leading Coeff.
• Odd Degree
  + Leading Coeff.

What is another way to say "where a function crosses the x-axis"?

• x-intercept

• zero

• root

• all of these.