Question

The line of best fit through a set of date is y= 42.626+3.019xAccording to this equation, what is the predicted value of the dependent variable when the independent variable has value 180?Y = Round to 1 decimal place.

Answer 1

Solution

Step1

Write the line of best fit

y = 42.626 + 3.019x

Step 2

Substitute x = 180

$\begin{gathered} y\text{ = 42.626 + 3.019}\times180 \\ \\ y\text{ = 586.046} \end{gathered}$

Final answer

y = 586.0