### Tables of values

Given the rule for a relationship, we can complete a table of values and plot the points on the Cartesian plane.

#### Example 2

- y = 2x − 1
x –4 –3 –2 –1 0 1 2 3 4 y –9 –7 –5 –3 –1 1 3 5 7 - y = –x + 2
x –4 –3 –2 –1 0 1 2 3 4 y 6 5 4 3 2 1 0 –1 –2