If f(x)=3[x] +5, find f(x) if x= 4.3f(x)= -17f(x)= 17f(x)= 20f(x)= -20

Rbm asked Sep 22, 2023

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Rbm asked Sep 22, 2023

by Rbm

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21 votes

It is given that

$f(x)=3\lbrack x\rbrack+5$

Now

$\begin{gathered} f(4.3)=3\lbrack4.3\rbrack+5 \\ =3(4)+5 \\ =12+5 \\ =17 \end{gathered}$

So the correct answer is f(x)=17

MEdwin answered Sep 27, 2023

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