A. Substitute x = 3 into the equation of the line of best fit.
B. Estimate of the inventory on day 3 is: 3 (in hundreds).
What is the Equation of a Line of Best Fit?
The equation of the line of best fit models the relationship between two variables, which can be used for making estimates or predictions.
The equation of the line of best fit given is: f(x) = -1/3x + 4, where:
- x = days after delivery
- f(x) = inventory
A. To estimate the inventory after day 3, substitute x = 3 into the equation of the line of best fit.
B. Plug in x = 3 into f(x) = -1/3x + 4
f(3) = -1/3(3) + 4
f(3) = 3
Estimate of the inventory on day 3 is: 3 (in hundreds).
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