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Make a table that shows the pattern for the area, where the input is the figure number x and the output is the area A. Write an equation that describes the function. Then use your equation to find which figure has an area of 81 when the pattern continues.
Figure 1=1
Figure=2=4
Figure3=9
Figure4=16
 Feb 27, 2014

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Make a table that shows the pattern for the area, where the input is the figure number x and the output is the area A. Write an equation that describes the function. Then use your equation to find which figure has an area of 81 when the pattern continues.
Figure 1=1
Figure=2=4
Figure3=9
Figure4=16



if you look carefully you'll see that

area = figure 2

so you want to find the figure so

81 = figure 2

taking the square root of both sides we get

9 = +/- figure, but since all the figures are positive we'll assume this one is too so

figure = 9
 Feb 28, 2014

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