What is the slope of a line perpendicular to the line whose equation is  x-3y=-6x−3y=−6

- 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Rearrange x - 3y = - 6 into this form

Subtract x from both sides

- 3y = - x - 6 ( divide all terms by - 3 )

y = x + 2 ← in slope- intercept form

with slope m =

Given the slope m of a line then the slope of a line perpendicular to it is

= - = - = - 3