Make an x, y table with the x values representing the figure number and the y values representing the number of tiles.
Fill in values for x and y. What is the growth?
Work backward. What is the starting point?
Write an equation y = mx + b using the growth and starting point.
y = 3x
Does this rule work for your table?
Once you find a rule for the pattern use the eTool below to complete the figures.
Click the link at right for the full version of the eTool: AC 6-85 HW eTool.