Predict the result
Complete the table for y equals four x minus two at zero, negative one, and two.
Each input gives one output.

Set up the model
Substitute an x value into the formula.
Calculate y, then write x and y as an ordered pair.

Work the example
At zero, y is negative two. At negative one, y is negative six.
At two, y is six.
The three pairs are the point zero comma negative two,
the point negative one comma negative six, and the point two comma six.
Each pair satisfies the equation.

Check the result
Now use y equals three x minus one with the same three inputs.
Take eight seconds to think before the answer appears.
[Eight-second silent pause to work; the answer remains hidden.]
The outputs are negative one, negative four, and five.
The pairs are the point zero comma negative one,
the point negative one comma negative four, and the point two comma five.

Interpret the result
A table makes the input-output relationship visible.
Use the original task and check that your result fits its meaning.