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by shashank.ism » Sun Feb 21, 2010 4:25 pm
tsmith93 wrote:If f(x)=9x+9^x, what is the value of f(1/2)?
f(1/2) = 9/2 +9^(1/2) = 4.5 +3 = 7.5 Ans
easy one...
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by harsh.champ » Sun Feb 21, 2010 4:36 pm
tsmith93 wrote:If f(x)=9x+9^x, what is the value of f(1/2)?
Just replace the unknown quantity "x" in the function and you will get the answer.
Over here,x=1/2
f(x)=f(1/2) = 9(1/2) + 9^(1/2)
=[spoiler]9/2 + 3 = 15/2[/spoiler]

Hey tsmith93,what was your doubt here???
For detailed concept analysis of functions,you can refer to some of the OG questions.
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by ajith » Sun Feb 21, 2010 7:24 pm
tsmith93 wrote:If f(x)=9x+9^x, what is the value of f(1/2)?
f(1/2) = 9*1/2+ 9^1/2 = 9/2 + sqrt(9) = 9/2 +3 = 15/2
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