For those which are polynomial functions, find the degree, the leading term, and the leading coefficient. 76) f(x) = 7x4 + 6x2 A) Degree: 4, leading term: 7x4 , leading coefficient: 7 B) Degree: 4, leading term: 7, leading coefficient: 7x 4 C) Degree: 7, leading term: x4 , leading coefficient: 7 D) Degree: 2, leading term: 7x4 , leading coefficient: 7 Answer: A 77) f(x) = 3 + 5x - 7x 3 A) Degree: 0, leading term: 3, leading coefficient: 3 B) Degree: 3, leading term: -7, leading coefficient: 3 C) Degree: 3, leading term: -7x3 , leading coefficient: -7 D) not a polynomial function Answer: C 78) f(x) = 4x4 + 8 - 2 2x7 A) Degree: 7, leading term: 2 2x7 , leading coefficient: 2 2 B) Degree: 7, leading term: -2 2x7 , leading coefficient: -2 2 C) Degree: 4, leading term: -2 2x7 , leading coefficient: -2 2 D) not a polynomial function Answer: B 79) f(x) = -5 A) Degree: 0, leading term: -5x, leading coefficient: -5 B) not a polynomial function C) Degree: 0, leading term: -5, leading coefficient: -5 D) Degree: 1, leading term: -5, leading coefficient: -5 Answer: C SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Explain why the function is not a polynomial function. 80) f(x) =
x 5- 9 x6 - 1
Answer: Division by a polynomial is not allowed 81) f(x) = x3/2 - x5 - 1 Answer: Noninteger exponent 82) f(x) = 5x3 + 4x2 - 5x-2 + 16 Answer: Negative exponent 83) f(x) = x2 - 3 x + 8 Answer: Presence of x
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