1.
**1** answ

These are the same values that were in the equation.

We also notice that the ordered pairs given in the table are also on the line graphed so we can conclude that all representations given in the problem are the same.$ $

2.
**1** answ

If the difference between the x values is constant (meaning always the same) and the difference between the y values is also constant, then the relationship between the two variables is linear.

3.
**1** answ

The points (-1,7), (0,4), and (2,-2) are on the same line.

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