Let f(x) = 4x - 5 and g(x) = 3x + 7. Find f(x) + g(x) and state its domain. 7x - 12; all real numbers 7x + 2; all real numbers x + 2; all real numbers X - 12; all real numbers

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KLicheR asked Feb 6, 2022

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Let f(x) = 4x - 5 and g(x) = 3x + 7. Find f(x) + g(x) and state its domain.

7x - 12; all real numbers
7x + 2; all real numbers
x + 2; all real numbers
X - 12; all real numbers

Mathematics
high-school

KLicheR asked Feb 6, 2022

by KLicheR

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17 votes

Answer:

2nd option

Explanation:

f(x) + g(x)

= 4x - 5 + 3x + 7 ← collect like terms

= 7x + 2

domain is all real numbers

Sebbab answered Feb 12, 2022

by Sebbab

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