Characteristics of Functions Graphically

What are all the x-intercepts?

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

What is the end behavior as x → -∞ f(x)→ ?

• -∞
• ∞

What is the end behavior as x → +∞, f(x)→ ?

• -∞
• ∞

What is the range of this quadratic function?

• All real numbers.
• [2, infinity)
• [4, infinity)
• (negative infinity, 4]

What is the range of this function?

• All real numbers.
• [2, infinity)
• [-2, infinity)
• [0, infinity)

Find the zeros.

• x = 0 and 4
• x = 0 and -4
• x = 0
• x = -4

Does this graph have a maximum or minimum value?

• maximum
• minimum
• neither
• both

What is the interval of decrease?

• (negative infinity, -2)
• (-2, infinity)
• (2, infinity)
• (negative infinity, 2)

All of the y-values or outputs are called what?

• Domain
• Range
• Relation
• Function

Which of the following is the range of this function?

• 2 ≤ x ≤ 8
• -5 ≤ y ≤ 9
• 2 ≤ y ≤ 8