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8-66.
  1. Decide if each of the following functions is a polynomial function. If it is, state the degree. If it is not, explain how you know. Homework Help ✎

    1. f(x) = 3x3 – 2x + 5

    2. y = 0.25x7 – 5x

    3. y = 3xx2

    4. f(x) = x2 + 2

    5. Q(x) = 3(x – 4)2(x + 2)

    6. y = x2 – 3x + 5 –

Review the Math Notes boxes in Lessons 1.1.4 and 8.1.1.

Yes; degree 7

No; it contains an exponent of x.

The expoenents must be whole numbers. What is the exponent of a square root?

If you were to expand and simplify, what would be the highest power of x?