There were 338 Krispy Kreme Doughnuts stores in the US in 20

There were 338 Krispy Kreme Doughnuts stores in the US in 2003 and 222 Krispy Kreme Doughnuts stores in the US in 2008. Write linear equation in slope-intercept from that models this decline. Let x stand for the number of years after 2003 and let y stand for the number of Krispy Kreme Doughnuts stores in the US.

Please show all work clearly, thank you...

Solution

338 in 2003, x=0
222 in 2008,x=5
slope is 116/5

point slope formula y-y1=m(x-x1), where (x1,y1) is point
y-338=(116/5)x
y=(116/5)x+338

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