Question

N a northwestern U.S. town, the peak temperature is 96° Fahrenheit in August. After the peak, it drops an average of 4° Fahrenheit per week. The graph below models the number of weeks it would take the temperature to drop below freezing, 32° Fahrenheit.

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Which of the following is the correct interpretation of the solution?
A.
It would take less than 16 weeks to drop below freezing.
B.
It would take more than 16 weeks to drop below freezing.
C.
It would take 16 or more weeks to drop below freezing.
D.
It would take 16 or less weeks to drop below freezing.

Answer 1

It would take more than 16 weeks to drop below freezing.

Explanation:

The temperature is dropping from 96°F to 32°F at a rate of 4°F per week, where 32°F is the freezing point.

Hence, 32 = 96 - 4w { Where w week is required to reach 32°F }

⇒ 4w = 64

⇒ w = 16

Therefore, it would take more than 16 weeks to drop below freezing. ( Answer )