A picture is enlarged by keeping its width the same and increasing its length. The scatter plot below shows the perimeter of the picture (y) for different lengths (x):
plot the ordered pairs 20, 60 and 30, 80 and 40, 100 and 50, 120 and 60, 140
Which function best represents the data in the scatter plot?
y = 2x − 20
y = 2x + 20
y = x − 20
y = x + 20

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well first, find the slope, y2 - y1/x2 - x1

so ill give you this 120 - 60/50 - 20

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