## itsjustme_lol 3 years ago Write the equation of the line with a slope of -1/3 and passing through the point (6, -4).

1. surdawi

y-y1=m(x-x1)

2. itsjustme_lol

wait im confused to what that is?

3. surdawi

m is the slope and x1,y1 the point u have

4. itsjustme_lol

im not exactly understanding..."/

5. surdawi

what is the slope?

6. itsjustme_lol

-1/3

7. surdawi

ok plug that into y-y1=m(x-x1) now what is the x and y values?

8. itsjustme_lol

0,3?

9. MathLegend

In that formula.. m = slope

10. MathLegend

@itsjustme_lol can you plug in everything into that formula now?

11. itsjustme_lol

so m=-1/3

12. MathLegend

Right.... and you know what x1 and y1 are since they gave you the coordinates. So plug it in.... y-y1=m(x-x1)

13. itsjustme_lol

y-4=m(x-6)?

14. MathLegend

y-(-4)=-1/3(x-6) y+4=-1/3(x-6) @itsjustme_lol do you understand that?

15. itsjustme_lol

why did we put +4 in the second one?

16. MathLegend

y-(-4) = y+4

17. MathLegend

two negatives makes a positive

18. MathLegend

It is a negative being multiplied by a negative. That is something you should be familiar with.

19. MathLegend

y+4=-1/3(x-6) Can you simplify the right side of this equation?

20. itsjustme_lol

give me a second

21. itsjustme_lol

wait im still confused. im sorry!!!

22. MathLegend

It is fine.

23. MathLegend

24. itsjustme_lol

i dont know how to solve that equation

25. MathLegend

y+4=-1/3(x-6) *We must first distribute that -1/3 on the right side of the equation. y+4=-1/3x+2 Now we need to make this equation into the slope-intercept form... so y=mx+b... so lets subtract the 4 from both sides. y+4=-1/3x+2 -4 -4 --------------------- y=-1/3x-2

26. MathLegend

@itsjustme_lol do you understand?

27. itsjustme_lol

that makes sense now