Final answer:
Using the line of best fit, we can estimate the number of gallons of water that 13 runners would be expected to drink. By substituting the value of x (13 runners) into the equation of the line, we can calculate the estimated amount of water (y).
Step-by-step explanation:
When using the line of best fit, we can estimate the amount of water that 13 runners would be expected to drink.
The line of best fit is a straight line that best represents the trend in the data points.
In this case, we can use the line of best fit to estimate the relationship between the number of runners and the gallons of water they drink.
If we find that the line has an equation of y = mx + b, where y represents the gallons of water and x represents the number of runners, then we can substitute x = 13 into the equation to find the estimated amount of water.
For example, if the equation of the line of best fit is y = 2x + 5, then when x = 13, we can calculate:
y = 2(13) + 5
y = 26 + 5
y = 31
So, using this line of best fit, we can estimate that 13 runners would be expected to drink approximately 31 gallons of water.