I'm going back to school after 29 years and I feel so confused. Can you help me?
There were 6205 CVS stores in the US in 2006 and 7703 CVS stores in the US in 2013. Write a linear equation in slope-intercept form that models this growth. Let x stand for the number of years after 2006 and let y stand for the number of CVS stores in the US.
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This is finding the slope and intercept of a line using two points but it is disguised by the word problem. X is the number of years after 2006 and y is the number of stores. In 2006 there were 6205 stores. So your first point is 0, 6205. There were 7703 stores in 2013. So your second point is 7, 7703. Plus those into your slope equation Y2 - Y1 / X2-X1. 7703-6205/7-0. Working the math gets us 214. So that's our slope. The y-intercept is the y value when X=0. Well we conveniently have that from the problem. Its 6205. So putting that into y=mx + b form we get Y = 214 X + 6205.
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