Question

State the slope and y intercept of the equation for these 3 questions

1. y = 3x + 4
2. y = -3/7x - 1/7
3. 3x + y = -4

Answer 1

see explanation

Explanation:

the equation of a line in slope-intercept form is

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

(1)

y = 3x + 4 is in this form

with slope m = 3 and y-intercept c = 4

(2)

y = -
`(3)/(7)` x -
`(1)/(7)` is in this form

with slope m = -
`(3)/(7)` and y-in tercept c = -
`(1)/(7)`

(3)

rearrange 3x + y = - 4 into slope-intercept form

subtract 3x from both sides

y = - 3x - 4 ← in slope-intercept form

with slope m = - 3 and y-intercept c = - 4