Question

a calculator was used to perform a linear regression on the values in the table. the results are shown to the right of the table.
linreg
y = ax+b
a=-2.9
b=13.5
r2=.9688940092
r=-.9843241383
what is the line of best fit?
a. $y = -2.9x + 13.5$
b. $-0.984 = -2.9x + 13.5$
c. $y = -0.984x + 13.5$
d. $y = 13.5x - 2.9$

Explanation:

Step1: Recall linear regression form

The linear regression line is given by $y = ax + b$.

Step2: Substitute given values

From the results, $a=-2.9$ and $b=13.5$. Substitute these into the form:
$y = -2.9x + 13.5$

Step3: Match with options

This equation matches option A.

Answer:

A. $y = -2.9x + 13.5$