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The price per share of a stock (in dollars) over a period of 5 days is shown in the graph. Price per share (S) * (2, 93.00) *(3,92.75) *(1.91.50) Price (S) *(4,90.50) *(5,90.75) h Day.

User Lizardx
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The given graph is about the variation of price in certain days. The ordered pair (1, 91.50) means that on day 1 the price per share was $91.50.

On day 3 the price is 92.75.

On day 4 the price is 90.50.

To find the variation, we just have to subtract


r=(90.50-92.75)/(4-3)=(-2.25)/(1)=-2.25

Hence, the price decreased by $2.25.

We repeat the process to find the increase between day 4 and day 5.


r=(90.75-90.50)/(5-4)=(0.25)/(1)=0.25

Hence, the price increased by $0.25.

User Ian Richards
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