5.1 - 5.4 Quiz College Algebra

• Yes; degree 3
• Yes; degree 5
• No; the last term has no variable
• Yes; degree 6

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• 0, multiplicity 2, touches x-axis; -6, multiplicity 1, crosses x-axis
• 0, multiplicity 2, crosses x-axis; -6, multiplicity 1, touches x-axis

• A) {x|x ≠ 6, x ≠ -3}
• B) {x|x ≠ -6, x ≠ 3, x ≠ -9}
• C) {x|x ≠ -6, x ≠ 3}
• D) all real numbers

• A) x = -4, x = -7, x = -5
• B) x = 4, x = 7
• C) x = -4, x = -7
• D) x = -5

• y = 5
• y = 2
• y = 0
• no horizontal asymptote

• A) y = x + 10
• B) no oblique asymptotes
• C) x = y + 10
• D) y = x + 6

Decide which of the rational functions might have the given graph.

• f(x) = 1 - x
• f(x) = 1 - 1/x
• f(x) = 1/x - 1
• f(x) = 1 + 1/x

• A) (-∞, -7) or (-1, ∞)
• B) (-1, ∞)
• C) (-7, -1)
• D) (-∞, -7)