##### Troubleshooting

If the table shows ERROR for a \(y\)-value, the expression you entered is undefined at the corresponding \(x\)-value.

If the table shows only \(x\)-values, no equation is activated. Press

`Y=`

to enter or activate an equation.

The table feature gives us a convenient tool for evaluating expressions. There are two steps to making a table:

Entering the equation

Setting the Table features

If we want a table with evenly spaced \(x\)-values, we use the Automatic setting.

Press

`Y=`

, clear any previous entries, and enter the expression or expressions you want to evaluate.Press

`2nd`

`WINDOW`

(TBLSET) to access the Table Setup menu. Enter the first \(x\)-value after TblStart\(=\text{,}\) and the \(x\)-increment after \(\Delta Tbl=\text{.}\) Highlight Auto for both the Independent and Dependent variables.-
Finally, press

`2nd`

`GRAPH`

(TABLE) to see the table. You can use the arrows to scroll up and down the table. Figure B.38 shows the Table Setup and the resulting table for \(y = 5 - x^3\text{.}\)

If we want to choose specific \(x\)-values for the table, we proceed as above but choose Ask instead of Auto for the Independent variable. Press `2nd`

`GRAPH`

to see the table, then enter the \(x\)-values, pressing `ENTER`

after each one.

If the table shows ERROR for a \(y\)-value, the expression you entered is undefined at the corresponding \(x\)-value.

If the table shows only \(x\)-values, no equation is activated. Press

`Y=`

to enter or activate an equation.

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