Graphing linear inequalities worksheet for Algebra 1
Two decisions per question: whether the boundary line is dashed or solid, and which side gets shaded. The answer key shows both.
Also taught in Pre-Algebra and Algebra 2, each at its own level and with its own examples.
Not quite the one you need? Same words, different skill:
- One-Step Inequalities (Algebra 1). One operation, including the negative that turns the sign round.
- Two-Step Inequalities (Algebra 1). Two operations, with negatives that flip the sign.
- Multi-Step Inequalities (Algebra 1). Like terms, both sides, parentheses, and word problems.
- Writing Inequalities from a Graph (Algebra 1). Read the circles and the direction.
- Quadratic Inequalities (Algebra 1). Where the parabola sits above or below zero.
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Pick more than one for a sheet that mixes them.
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Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep
Sigma Prep · sigmaprep.io/worksheets Name Graphing Linear Inequalities Date Period Graph each inequality, or answer as asked.
Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep |
Sigma Prep · sigmaprep.io/worksheets Name Graphing Linear InequalitiesAnswer keyVersion 1 Date Period Graph each inequality, or answer as asked.
Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep |
How to do these
Graph
- Draw y = 2x - 3, dashed because it is a strict inequality.
- Test the origin: 0 > -3 is true.
- So shade the side containing the origin.
The answer is dashed line, shade above.
Where students go wrong
Shading the wrong side by guessing. Test a point, and the origin is the easiest one unless the line passes through it. Greater-than does not always mean above once the line is rearranged.
Also called shading inequalities, half planes or graphing inequalities on a grid.
What you can put on this worksheet
- One inequality, shaded
- Graph → dashed line, shade above
- A fraction slope
- Graph → solid line, shade above
- A horizontal or vertical boundary
- Graph → Dashed horizontal line , shade above
- Is the point a solution?
- Is a solution of ? → No: is false