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Question 1125247: Given the function f, find f(−3), f(2), f(−a), −f(a), and f(a + h).
f(x) = 4x − 5/ 9x + 4
f(−3)=
f(2)=
f(a + h)=
* I've plugged each given variable into the x- value, but the answers that are resulting are incorrect. For instance, my answers have been in chronological order:
F(-3): -17/32
f(2): 3/13
f(-a): -4a-5/9a-5*
If someone can offer assistance into where I am going wrong, it would be greatly appreciated.
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website! Note: I am assuming this is (4x-5)/(9x+4). If the expression is different, please put parentheses appropriate to what is desired.
f(-3) is -17/-23 9x+4 is -27+4
f(2) is 3/22
f(-a) is (-4a-5)/(-9a+4), or (4a+5)/(9a-4)
f(a) is (4a-5)/(9a+4)
f(a+h)=4a+4h-5 divided by 9a+9h+4
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