Table of values calculator with graph

Type a function, tap table of values, and get a table of x and y values that you can edit, with the points plotted on the graph.

The free IB Math Revision Grapher: y = x² − 2x − 3 with its table of values: the second column is worked out from the first
y = x² − 2x − 3 with its table of values: the second column is worked out from the first. Open it in the full Grapher.

How to do it

  1. Type the function. For example y = x^2 - 2x - 3.
  2. Make the table. Tap the curve to select it, then tap table of values under its line. A table appears with x values from the graph's window and a second column worked out from the function.
  3. Change the x values. Edit or add x values in the first column; the y column updates. Use a step of 0.5 or 0.1 near a turning point.
  4. Use a column heading as a formula. A column heading like x_1^2 - 2x_1 - 3 is a computed column, so you can add more columns for other functions of the same x values.
A parabola y = x² − 2x − 3 in the Grapher with a table of x and y values and the points plotted on the curve, with its roots and vertex marked
A table of values: the y column is computed from the x values, and the points sit on the curve.

Good to know

Frequently asked questions

How do I make a table of values for a function?

Type the function, tap its curve and tap “table of values”. Or make a table yourself with a first column x_1 and a second column whose heading is the function of x_1.

Can I change the step size?

Yes: type the x values you want in the first column (for example −2, −1.5, −1 …) and the second column is recalculated.

Is it like the table on a GDC?

It does the same job as a GDC's table of a function, with the points plotted on the graph next to it.

Learn more

More Grapher guides

The Grapher is our own free tool (graph.mathrevision.co.uk), built for IB, A Level and IGCSE students. It is not an exam calculator: practise on your own GDC for calculator papers.