Weather records in a city show the coldest recorded temperature was −20°F, and the hottest was 120°F. Which of the following number lines represents the range of recorded actual temperatures in this city?

Question

Quizplus · Accepted Answer

The coldest temperature is −20°F and the hottest temperature is 120°F. Therefore, the range of temperatures includes all temperatures between −20°F and 120°F. The number line in choice B includes all the values from −20 to 120, including both endpoints, so it represents the range of temperatures correctly. The other number lines do not include one or both of the endpoints, so they do not represent the entire range of temperatures.

Weather Records in a City Show the Coldest Recorded Temperature