9
QuizMultiple Choice

Combining Functions — Quiz

Question 9 • Algebra I

f of x is equal to x squared minus 3 x plus 5 g of x is equal to 2 x squared minus 4 x minus 11 What is h of x is equal to f of x plus g of x ?

Answer
A
h of x is equal to 2 x squared minus 7 x minus 6
B
h of x is equal to negative x squared plus x plus 16
C
h of x is equal to 3 x squared minus 7 x minus 11
D
h of x is equal to 3 x squared minus 7 x minus 6

Explanation

Add the matching terms in f(x) and g(x): (x² + 2x²) + (−3x − 4x) + (5 − 11). This gives h(x) = 3x² − 7x − 6, which is choice D.

AI-written and checked against the verified answer.

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