The scatter plot and trend line show the relationship between the number of rainy days in a month and the number of umbrellas sold each month. Write an equation for the trend line. Use the trend line to predict about how many rainy days are in a month if 8 umbrellas were sold.



Slope (m) =

y-intercept(b) =

equation: y=

It rained about
days in a month if 8 umbrellas were sold.

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