vbonesmoreno74 vbonesmoreno74

02-07-2020
Mathematics

contestada

If f(x) = 2x + 3 and g(x) = x2 -1, what is the degree of [fog)(x)?
O 2
O 5
O 7
o 10

Respuesta :

tramserran tramserran

02-07-2020

Answer: 2

Step-by-step explanation:

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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