Question

carlos has a part - time job at an ice skating rink selling hot cocoa. he decided to plot the number of hot cocoas he sold relative to the day’s high temperature and then draw the line of best fit. what does the slope of the line represent?
answer
a prediction of the temperature when 1 hot cocoa is sold.
the rate of change in the day’s high temperature for every additional hot cocoa sold.
the average change in the number of hot cocoas sold for every additional degree of the day’s high temperature.
a prediction of number of hot cocoas sold when the temperature is 1°f.

Explanation:

The line of best fit's slope represents the average rate of change of the dependent variable (hot cocoas sold) with respect to the independent variable (high temperature). Here, the x-axis is temperature (independent) and y-axis is hot cocoas sold (dependent), so the slope is the change in hot cocoas per degree change in temperature.

Answer:

The average change in the number of hot cocoas sold for every additional degree of the day's high temperature.