Question

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.

Answer 1

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

$r=\frac{90.50-92.75}{4-3}=\frac{-2.25}{1}=-2.25$

Hence, the price decreased by $2.25.

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

$r=\frac{90.75-90.50}{5-4}=\frac{0.25}{1}=0.25$

Hence, the price increased by $0.25.