2.1.5 Linear Inequalities in Two Variables (continued) Example 2 Graphing Linear Inequalities Using Intercepts Recall that the x -intercept of a line can be found by substituting 0 for y in the equation, and the y -intercept of a line can be found by substituting 0 for x in the equation. If the equation of a boundary line for a linear inequality is not in slope-intercept form, then choose a test point not on the boundary line to determine which region to shade (above the line or below the line). If the point satisfies the inequality, then shade the region containing the point. If the point does not satisfy the inequality, then shade the region that does not contain the point.
102
Made with FlippingBook flipbook maker