If f(x)=2x-5, then what is f(0)?

Feb 1, 2017

$f \left(0\right) = - 5$

Explanation:

To solve this problem substitute $\textcolor{red}{0}$ for each occurrence of $\textcolor{red}{x}$ in the function and the calculate the result.

$f \left(\textcolor{red}{x}\right) = 2 \textcolor{red}{x} - 5$ becomes:

$f \left(\textcolor{red}{0}\right) = \left(2 \times \textcolor{red}{0}\right) - 5$

$f \left(\textcolor{red}{0}\right) = 0 - 5$

$f \left(\textcolor{red}{0}\right) = - 5$