To create this pattern I used clear red counters. In my first figure, I placed one red counter. In the second, I placed one on top and then one on the right. I followed that by placing a second one on top and a second one on the right when I made figure three. For figure four, there are three counters on top of the original one and three counters to the right of the original one.
The pattern rule going down (value to value to value….) is +2.
The pattern rule going across (relating figure # to the value) is X2-1.
It is better to know the pattern rule going across, rather than down is because….WELL, I’m not going to tell you because that’s the ANSWER!!
I created my scatter plot at an online site. For my scatter plot, I’ve titled it “Scatter Plot for Growing Pattern”. The x-axis (horizontal) is titled “Figure Number” and I’ve went from 1 to 5 on that line. The y-axis (vertical) is titled “Number of Counters” and represents the number of counters that I used for each figure. I can tell that I built my growing pattern correctly because my scatter plot lines are in a straight line. If they weren’t, I would know that I made a mistake in my growing pattern.