Number Line Maker: Points, Inequalities
Use this number line maker to draw a clean number line for homework, lessons or worksheets. Set the start, end and step, add points, graph an inequality such as x >= 2 or -3 < x <= 4 with correct open and closed circles, and show addition or subtraction as arrows jumping along the line. The picture updates as you type and you can save it as a PNG image. It works for whole numbers, negatives and decimals, and it runs in your browser with nothing to install.
Number Line Maker
Draw a number line with points, an inequality and addition jumps.
How to use the Number Line Maker
- Enter the minimum, maximum and step for the line.
- Type points separated by commas, for example 2, -3, 4.5.
- Optional: type an inequality such as x > 2 or -3 <= x < 4, or a start number and a jump like 3 + 4.
- Press Draw, then Download PNG to save the picture.
Features
- Whole numbers, negatives and decimals
- Points with labels
- Inequalities with open and closed circles
- Addition and subtraction jump arrows
- Adjustable range and step
- Download as PNG
Frequently asked questions
How do I draw an inequality on a number line?
Type it as x > 2 or -3 <= x < 4. A strict sign (< or >) draws an open circle, and a sign with equals (<= or >=) draws a closed circle, with the solution shaded.
How do I show addition on a number line?
Enter a start number and a jump, such as 3 + 4. The tool draws an arrow from 3 that lands on 7. Use a minus sign for subtraction.
Can I use negative numbers and decimals?
Yes. Set the minimum below zero and use a decimal step such as 0.5, then enter any decimal points.
How many points can I plot?
You can plot up to 30 points. The labels are drawn above the line so they stay readable.
Can I download the number line?
Yes. Press Download PNG to save the picture for worksheets or slides.