How to Use Table on a TI-84 Calculator

Introduction

The table feature shows x-values and matching y-values for a function. It is helpful for checking patterns, estimating intercepts, and building points for a graph.

Step-by-step instructions

1. Press Y= and enter your function in Y1.
2. Press 2nd and then TBLSET.
3. Choose the starting x-value with TblStart.
4. Choose the step size with ΔTbl.
5. Press 2nd and then TABLE.
6. Scroll through the x and y values.

Practical example

For y = 2x + 1, start at x = 0 and use a step of 1. The table shows 1, 3, 5, 7, and so on, making the slope pattern easy to see.

Common mistakes

• Entering the equation in the home screen instead of Y=.
• Leaving TblStart at a value that hides the values you need.
• Using a step size that is too large.
• Forgetting that the table is based on the active Y= functions.

FAQ

Can the table help find zeros?

Yes, but it gives estimates unless the exact zero appears in the table.

Can I compare two functions?

Yes. Enter functions in Y1 and Y2, then view both columns in the table.

What should I read next?

Read how to graph on a TI-84 and practice on the online calculator.