## Ilovemeowmeow Group Title What is the y coordinate of the y−intercept of the line that passes through the points (−2, −2) and (2, 4)? one year ago one year ago

1. 3psilon Group Title

Use the slope formula $\frac{ y_{2}-y_{1} }{ x_{2}-x_{1} }$

2. Ilovemeowmeow Group Title

Oh do this again? Okay got it hahah

3. 3psilon Group Title

$\frac{ 4-(-2) }{2-(-2) }$

4. 3psilon Group Title

Yes . Get it ? :)

5. Ilovemeowmeow Group Title

I do! thanks!

6. 3psilon Group Title

But wait that's the slope. You need the y intercept which is the b in y = mx +b

7. Ilovemeowmeow Group Title

oh.

8. 3psilon Group Title

So we found the slope m . Now just plug in One of the two coordinates and the slope into y = mx + b and solve for b. Let me know if you need more help

9. Ilovemeowmeow Group Title

I need more help forsure

10. 3psilon Group Title

Ok did you find the slope m?

11. Ilovemeowmeow Group Title

finding it now.

12. 3psilon Group Title

Ok let me know what you get

13. Ilovemeowmeow Group Title

I got 3/2?

14. 3psilon Group Title

Good job! Now we use the slope intercept formula y = mx + b

15. 3psilon Group Title

pick either (−2, −2) or (2, 4) to plug in for x and y

16. 3psilon Group Title

And you'll be able to solve for the y - intercept b

17. Ilovemeowmeow Group Title

so -2=3/2(-2)+b? lo

18. 3psilon Group Title

19. Ilovemeowmeow Group Title

how though?!

20. Ilovemeowmeow Group Title

I just cant find an answer...

21. 3psilon Group Title

Just isolate the term b

22. 3psilon Group Title

b is the y intercept

23. Ilovemeowmeow Group Title

Is -1=3/2(-2) it?

24. 3psilon Group Title

nope I'll draw it out for you. one sec

25. Ilovemeowmeow Group Title

ok

26. 3psilon Group Title

|dw:1350673516403:dw|

27. Ilovemeowmeow Group Title