2. Patterns and Linear Functions
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For every unit increase in x, there is the same unit increase in y.
For every unit increase in x, there are two units of decrease in y.
For every value of y, the value of x is always equal to 3.
For every 1 step to the right on the x-axis, y increases by 1.
Every time the graph increases 1 step to the right on the x-axis, the y-value decreases by 2.
The points lie on a vertical line. For every value of y, the value of x is always equal to 3.