Polynomial Functions quiz study

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If f(x) = -2x + 7 and g(x) = x2 - 2, what is [f o g](3)?

-7

Which expression represents the composition [f o g o h](x) for the functions below?f(x) = -2x4g(x) = 4x - 6h(x) = x - 1

-2(4x - 10)4

Which expression represents the composition g(f(x)) for the functions below?f(x) = -3x2g(x) = 3x

-9x2

A jacket is on sale for $15 off. As part of a one-day sale, a 20% discount is applied to all purchases. If x represents the original price of the jacket, which expression represents the final price of the jacket during this sale?

0.8x - 12

If f(x) = 6x3 + 5x, g(x) = 3x2 + 5, and h(x) = 9x2 - 8, what is the degree of f(g(h(x)))?

12

If f(x) = x5 - 1, g(x) = 5x2, and h(x) = 2x, which expression is equivalent to [g o f o h](9)?

NOT D : (5(2 · 9)2)5 - 1

If f(x) = 7x2 - 3 and g(x) = 5x, which expression is equivalent to [g o f](2)?

5(7 · 22 - 3)

If f(x) = -x3, g(x) = 3x2 - 1, and h(x) = 2x + 5, what is the degree of [f o g o h](x)?

6

If f(x) = x3 + 7x2 - x and g(x) = x2 - 3, what is the degree of g(f(x))?

6

Which expression represents the composition [g o f](x) for the functions below?f(x) = 3x - 2g(x) = 1 + 2x

6x - 3


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