Given the statement: In five trading days, the stock price rose $2.90.
Choose the sentence that best expresses how rapidly, on average, the quantity has changed over the given interval.
A) The stock price increased by an average rate of $1.72 per day.
B) The stock price increased by an average rate of $0.58 per day.
C) The stock price increased by an average rate of $1.45 per day.
D) The stock price increased by an average rate of $2.90 per day.
E) The stock price increased by an average rate of $5.00 per day.

Question

Quizplus · Accepted Answer

To find the average rate of change, we divide the total change by the number of days.
Average rate of change = Total change/Number of days 
Therefore,  average rate of change = $2.90/5 = $0.58 per day. 
Therefore, option B is the correct answer as it represents the average rate of change over the given interval.

Given the Statement: in Five Trading Days, the Stock Price