Chapter 13.7, Problem 12WE

To determine

To find : an equation of line described

Answer to Problem 12WE

The equation is $y=4x-4$

Explanation of Solution

Given information :

The point is $\left(3,8\right)$ and the slope is 4

Formula used :

  $y-y_1=m\left(x-x_1\right)$

Calculation :

Then use the point and slope

Using $\left(3,8\right)$ , the equation is

  $\begin{array}{l}y-8=4\left(x-3\right)\\ y=4x-12+8\\ y=4x-4\end{array}$

Hence, the equation is $y=4x-4$ .