Example

Graphing the Linear Inequality y>x+4y > x + 4

To graph the inequality y>x+4y > x + 4, first draw its boundary line y=x+4y = x + 4. By testing specific ordered pairs, we can determine which region contains the solutions. Points that lie above the line, such as (1,6)(1, 6) and (8,12)(-8, 12), satisfy the strict inequality y>x+4y > x + 4. Points that lie below the line, such as (0,0)(0, 0) and (5,15)(-5, -15), yield false statements (e.g., 0>40 > 4) and are not solutions. A point exactly on the boundary line, like (2,6)(2, 6), satisfies the equation y=x+4y = x + 4 but not the strict inequality. Because the points on the boundary line are not part of the solution set, the line is drawn as a dashed line. Finally, the entire half-plane above the dashed line is shaded to visually represent all ordered pairs that satisfy the inequality.

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Updated 2026-05-06

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