# Chapter 2 - Section 2.4 - Linear Inequalities in Two Variables - 2.4 Exercises - Page 184: 19

See graph.

#### Work Step by Step

A line in slope-intercept form has the equation: $y=mx+b$ ($m=slope$, $b=y-intercept$) Our equation already has slope-intercept form: $y\lt \frac{1}{2}x+3$ Thus we graph a line with $slope=1/2$ and $y-intercept=3$. We know that if an inequality has an "equal" sign (e.g. "$\leq$" or "$\geq$"), then a solid line should be graphed. If the inequality does not have an "equal" sign (e.g. "$\lt$" or "$\gt$"), then a dashed line should be graphed. We also know that if an inequality has a "less than" sign (e.g. "$y\lt$..." or "$y\leq$..." or "$x\lt$..." or "$x\leq$..."), then the shading should be below the line (or left for vertical lines). If the inequality has a "greater than" sign (e.g. "$y\gt$..." or "$y\geq$..." or "$x\gt$..." or "$x\geq$..."), then the shading should be above the line (or right for vertical lines). In our case, we must graph a dashed line and shade below. See the resulting graph.

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