Chapter 8.1, Problem 3BGP

To determine

To calculate: Find the value of function $f\left(-7\right)$ .

Answer to Problem 3BGP

The value of the function $f\left(-7\right)$ is $-7$ .

Explanation of Solution

Given that: Function $f\left(x\right)=14+3x$ , where $x$ is variable.

Calculation:

At the different value of $x$ we get the different value of the function.

Therefore, at $x=-7$ , the value of the function $f\left(x\right)$

  $\Rightarrow f\left(-7\right)=14+3\times \left(-7\right)$

  $\begin{array}{l}\Rightarrow f\left(-7\right)=14-3\times 7\\ \Rightarrow f\left(-7\right)=14-21\\ \Rightarrow f\left(-x\right)=-7\end{array}$