Question

1. Use functions f(x) and g(x) to answer the question.

f(x) = x2 + 10; g(x) = x – 3

Which is equal to (f + g)(x)?

A. 2x2 + 7
B. x2 + x + 13
C. 7x2 + x – 3
D. x2 + x + 7


2. Use functions f(x) and g(x) to answer the question.

f(x)=x^2-16; g(x)=x+4

Which is equal to (f/g)(x)?

A. x+4, x =/ -4
B. x+4, x =/ 4
C. x-4, x =/ 4
D. x-4, x =/ -4


3.Use functions f(x) and g(x) to answer the question.

f(x) = x + 6; g(x) = x2 – 2

Which is equal to (fg)(x)?

A. x^3+4
B. x^3-12
C. x^3+6x^2-2x-12
D. x^3-x^2-6x-12

Answer 1

D
D
C