Exercise 39 Page 154

Equations in slope-intercept form follow a specific format, where $m$ represents the slope of the line and $b$ is the $y\text{-}$intercept. The given equation is already in this form. Below we have highlighted the slope $m$ and $y\text{-}$intercept $b.$ We can see that the slope is $\text{-}\frac{1}{2}$ and the $y\text{-}$intercept is $7.$