Question

Which is the slope of the line with equation 7 x − 3 y = 21 ?

Answer 1

slope =
`(7)/(3)`

Explanation:

The equation of a line in slope- intercept form is

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

Rearrange 7x - 3y = 21 into this form

Subtract 7x from both sides

- 3y = - 7x + 21 ( divide all terms by - 3 )

y =
`(7)/(3)` x - 7 ← in slope- intercept form

with slope m =
`(7)/(3)`