## Need_Help_Correcting 2 years ago Write the equation of the given line in slope-intercept form. (Points : 1) I have a graph we suppose to use!

1. Need_Help_Correcting

Yes

2. Need_Help_Correcting

3. Kelumptus

OK, so what you need to do is pick to points on the line

4. Need_Help_Correcting

This is the attanchment with the choices

5. Need_Help_Correcting

and you know the information i am on number 1.

6. Kelumptus

We have two that are shown already

7. Need_Help_Correcting

Is it 2.4 and -4.1

8. Kelumptus

Yep, thats the two points

9. Need_Help_Correcting

So how do i write this is is choice C

10. Kelumptus

So we need an equation of the form y = mx + c where m is the slope and c is the y-intercept.

11. Need_Help_Correcting

Ok

12. Need_Help_Correcting

I need to plug them in

13. Kelumptus

So now we need to find all the components, that is, m & c

14. Kelumptus

C is easy, C (the y-intercept) is the point where the line crosses the y axis.

15. Need_Help_Correcting

Do i idividually do it or i try crmming both of them in one equation

16. Need_Help_Correcting

is it y=1/2x + 3

17. Kelumptus

One at a time, so first we find C. Can you see on the picture where the line crosses through the y axis?

18. Need_Help_Correcting

Yes

19. Kelumptus

Yep, you are correct, it is y = 1/2x + 3

20. Need_Help_Correcting

Woot!

21. Need_Help_Correcting

So its C what i mean by C is the third answer!

22. Need_Help_Correcting

By the way can yiou help me on four more but help me correct them!

23. Need_Help_Correcting

24. Need_Help_Correcting

I am on Number 2

25. Need_Help_Correcting

is it

26. Need_Help_Correcting

Y=-2

27. Need_Help_Correcting

are you there

28. Need_Help_Correcting

yes i need help correcting

29. Need_Help_Correcting

The second attanchment is the one problem i need help on!

30. Need_Help_Correcting

Can anyone help me?

31. Need_Help_Correcting

I think it is y = -2

32. Need_Help_Correcting

you there

33. winterfez

|dw:1354353288627:dw|

34. Need_Help_Correcting

Umm so its y=-2?

35. winterfez

do you have graphic calculaor?

36. Need_Help_Correcting

No O:

37. Need_Help_Correcting

Can you tell me if i got it correct?

38. Kelumptus

yes -2 is correct

39. winterfez

y=-2 is correct. because you have a straight horizontal line (y), thus no x...If it is vertical then you have x not y

40. Kelumptus

Sorry i was just having dinner before, but well done =)