Question

Evaluate the following function at f(-4)f(x)=|2x+3|-5f(-4)=

Answer 1

The function can be evaluated as,

`\begin{gathered} f(x)=\lvert2x+3\rvert-5 \\ f(-4)=\lvert2(-4)+3\rvert-5 \\ =\lvert-8+3\rvert-5 \\ =\lvert-5\rvert-5 \\ =5-5 \\ =0 \end{gathered}`

Thus, the required value is 0.