Chapter 1.4, Problem 9CFU

To determine

To find: line equation in slope-intercept form.

Answer to Problem 9CFU

  $y=2$

Explanation of Solution

Given information:

Horizontal line passes through $\left(-9,2\right)$

Calculation

For horizontal line, slope (m) is zero and has only one value of y. So, value of b is 2.

The slope intercept form is as follows:

  $y=mx+b$

Substitute the value of x and b in the above equation and simply it as follows:

  $\begin{array}{l}y=m\left(0\right)+2\\ y=2\end{array}$

Thus, the slope intercept form is of the line is $y=2$ .