Question 637879: If F(a) = (6 - 8a) / (6a + 9)
Then F(3) is:
Select one:
-2/3
2/3
-3/2
3/2
Answer by josh_jordan(263)   (Show Source):
You can put this solution on YOUR website! To solve, substitute 3 for a:
(6-8*3)/(6*3+9)
Using the order of operations, we would first simplify each set of parenthesis:
(6-24)/(18+9)=-18/27
Since 9 is a factor of both the numerator and demominator, we can divide both the numerator and denominator by 9 to reduce the fraction to lowest terms. Therefore,
-18/27 = -2/3
Answer: -2/3
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