Notice that there are two known coordinates:
Now notice that for every difference of
Use this reasoning to fill in the rest of the table.
The difference in the
Find the rule.
To find the rule, look for a pattern that can relate the y-coordinate to the x-coordinate.
Notice that at
Also remember that the y-coordinate increases by
for every units the -coordinate increases.
You can fill in the last y-coordinate in the table by substituting
into the rule.
What is the slope?
The slope describes how the values increase.
Complete the table in the eTool below to graph the points.
Click the link at right for the full version of the eTool: MC2 9-30 HW eTool