f of x is equal to 3 point 7 minus 2 x g of x is equal to 0 point 2 5 x minus 5 What is f of x plus g of x ?
Answer
A
h of x is equal to 8 point 7 minus 2 point 2 5 x
B
h of x is equal to 3 point 9 5 x minus 7
C
h of x is equal to 3 point 9 5 minus 7 x
D
h of x is equal to negative 1 point 3 minus 1 point 7 5 x
Explanation
Add the expressions: (3.7 − 2x) + (0.25x − 5). Combine like terms to get 3.7 − 5 = −1.3 and −2x + 0.25x = −1.75x, so f(x) + g(x) = −1.3 − 1.75x, which is choice D.
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