Answer:
The equation of the regression line is y=135x-397.
Step-by-step explanation:
In a regression line x representing the ratings and y representing price.
The general form of a regression line is
[tex]y=mx+b[/tex] .... (1)
where, m is slope and b is y-intercept.
It is given that the regression equation has a slope of 135 and a y-intercept of negative 397. It means
[tex]m=135[/tex]
[tex]b=-397[/tex]
Substitute m=135 and b=-397 in equation (1) to find the equation of the regression line.
[tex]y=135x+(-397)[/tex]
[tex]y=135x-397[/tex]
Therefore the equation of the regression line is y=135x-397.
