Question

question 3 of 10
a data set consists of the following data points:
(2,4),(4,7),(5,12)
the line of best fit has the equation y = 2.5x - 1.5. what does this equation predict for a value of x = 3?
a. 6
b. 10.5
c. 9
d. 7.5

Explanation:

Step1: Substitute \(x = 3\) into the equation

Given the equation \(y=2.5x - 1.5\), substitute \(x = 3\).
So, \(y=2.5\times3-1.5\).

Step2: Calculate the value of \(y\)

First, calculate \(2.5\times3 = 7.5\).
Then, \(y=7.5-1.5\).
Finally, \(y = 6\).

Answer:

A. 6