A scatterplot with grade of hill as a percent on the x axis and walking speed in miles per hour on the y axis. About 20 points are plotted in a downward trend along with a line of best fit which begins at the point zero comma 3 point 5 and passes through the point 2 comma 3.
The rate represents an increase in speed for each 1% grade increase.
The rate represents a decrease in speed for each 1% grade decrease.
The rate represents a decrease in speed for each 1% grade increase.
The rate represents no change in speed for each 1% grade decrease.
1 answer
In this scenario, the scatterplot shows a downward trend, indicating that as the grade of the hill (the x-axis) increases (becomes steeper), Jin's walking speed (the y-axis) decreases. Therefore, the correct interpretation of the slope (rate of change) in this case is:
The rate represents a decrease in speed for each 1% grade increase.
This means that for every 1% increase in the grade of the hill, Jin's walking speed decreases.
