Bluebook试题7 · 第 15 题

Bluebook试题7 · 原库模块 1 · Q15 原库参考解析

During a study, the temperature, in degrees Celsius (°C), of the air in a chamber was recorded to the nearest integer at certain times. The scatterplot shows the recorded temperature y, in °C, of the air in the chamber x minutes after the start of the study.

What was the average rate of change, in °C per minute, of the recorded temperature of the air in the chamber from\( x=5 \) to \( x=7 \) ?