Exercise 108 Page 105

To draw a line we need to know at least two points through which the line passes. In this case we know both intercepts, which means we have two points. Let's plot these points in a coordinate plane and connect them with a straight line.

To write the equation of the line on slope-intercept form, we have to identify the line's $y\text{-}$intercept $b,$ and slope $m.$ We already know that the $y\text{-}$intercept is $(0,\text{-}4),$ which means $b=\text{-}4.$ Using the Slope Formula, we can calculate the slope by substituting the intercepts into the formula and simplifying. Now we have all the information we need to write the equation.