Chapter 1.7, Problem 1LC

To determine

To find: $g\left(-b\right)$if the functions are $f\left(x\right)=6x+7$ and $g\left(x\right)=x^2-4$ .

Answer to Problem 1LC

The function value $g\left(-b\right)$ is $b^2-4$ .

Explanation of Solution

Given:

The functions are $f\left(x\right)=6x+7$ and $g\left(x\right)=x^2-4$ .

Calculation:

The value of function $g\left(-b\right)$ is calculated as follows:

  $\begin{array}{c}g\left(-b\right)={\left(-b\right)}^2-4\\ =b^2-4\end{array}$

Thus, the function value $g\left(-b\right)$ is $b^2-4$ .