4
lesson pretestMultiple Choice

Pretest

Question 4 • Math 3

If f of x is equal to 3 minus 2 x and g of x is equal to the fraction with numerator 1 and denominator x plus 5 , what is the value of open paren f over g close paren of 8 ?

Answer
A
13
B
negative 169
C
104
D
negative 1

Explanation

Evaluate both functions at x = 8: f(8) = 3 − 2(8) = −13, and g(8) = 1/(8 + 5) = 1/13. Then (f/g)(8) = f(8)/g(8) = −13 ÷ (1/13) = −169. The correct choice is negative 169.

AI-written and checked against the verified answer.

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