# If f(x)=3x-5, then how do you find f(2)?

Jun 19, 2016

$f \left(2\right) = 1$

#### Explanation:

$f \left(x\right)$ means a function of $x$. In this case the function of $x$ is $3 x - 5$

So if you have $f \left(2\right)$ you're applying the function with your value of $x$ as 2, so we simply substitute 2 into the equation where there is an $x$ so in this case:

$f \left(x\right) = 3 x - 5$
$f \left(2\right) = 3 \left(2\right) - 5$
$f \left(2\right) = \left(3 \cdot 2\right) - 5$
$f \left(2\right) = 6 - 5$
$f \left(2\right) = 1$