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!
volume of sphere =4/3.pi.r^3