Please Help What is the equation of this line in slope-intercept form?

1) y= 3x - 1
2) y=-3x - 1
3) y = 3x + 1
4) y=-1/3x-1

2.) y=-3x-1 and if you look closely you’ll notice the line is going down making it negative and it’s going down by 3 so it’s -3x and when your looking for y just remember you’re looking for the point that’s on the line of y and here you can see the point is on -1 so there’s your answer.

Hello from MrBillDoesMath!

See Discussion section below

Discussion:

We know that

m<1  = m<2          ("measure" of angle 1 = measure of angle 2)

                     and

m<3 = m< 4

Adding these two equations gives

m<1 + m<3 = m<2 + m<4

From the diagram,  m<1 + m<3 =  m<CWE and m<2+m<4= m<FZH. Substituting these in the above equation gives:

m<CWE = m<FZH

Regards,  

MrB