If f(x) = 2x + 3 and g(x) = x2 -1, what is the degree of [fog)(x)?O 2O 5O 7o 10
2 answers:
Answer: 2
<u>Step-by-step explanation:</u>
f(x) = 2x + 3 g(x) = x² - 1
f(g(x)) = f(x² - 1)
= 2(x² - 1) + 3
= 2x² - 2 + 3
= 2x² + 1
The largest exponent is 2 so the degree is 2.
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