Question

During one week, the price of a stock decreased $4 per day for 3 days and increased $2 per day for 4 days. Which integer represents the change in the price of the stock over the week? –20 –4 4 20

Answer 1

-4

Explanation:

The stock decreased $4 per day for 3 days, which means it decreased by a total of 3 x $4 = $12 over those 3 days.

The stock increased $2 per day for 4 days, which means it increased by a total of 4 x $2 = $8 over those 4 days.

Therefore, the net change in the price of the stock over the week is:

Net change = decrease + increase = -$12 + $8 = -$4

So the integer that represents the change in the price of the stock over the week is -4.

Therefore, the answer is: -4.

Answer 2

To determine the change in the price of the stock over the week, let's calculate the net change by subtracting the decreases from the increases.

Decrease: $4 per day for 3 days = $4 x 3 = $12
Increase: $2 per day for 4 days = $2 x 4 = $8

Net change = Increase - Decrease = $8 - $12 = -$4

Therefore, the integer that represents the change in the price of the stock over the week is -4.