## hayhay12345 one year ago what is an equation of the line in slope intercept form m=3 and the y intercept is (0,4)

1. hayhay12345

y=4x+3 y=-3x+4 y=4x-3 y=3x+4

2. hayhay12345

i think its the last one

3. candyme

The slope intercept form is y=mx+b. Since m is the slope, we can fill in y=3x+b We also know that b is the y part of the y intercept. SO the full equation is y=3x+4

4. candyme

5. hayhay12345

i got it right?! sweet

6. hayhay12345

can u help me with another?

7. candyme

Sure!

8. hayhay12345

im going to screen shot it

9. hayhay12345

10. candyme

This one will be much easier if you get the y all by itself on the left. So start by adding the x to both sides. -12y-5x+5x=5x+11 -12y=5x+11 Now you want to divide by 12$y=-\frac{ 5 }{ 12 }x-\frac{ 11 }{ 12 }$

11. candyme

So the slope is the number in front of the x $-\frac{ 5 }{ 12 }$ And the y intercept is the number that has no variable$-\frac{ 11 }{ 12 }$

12. hayhay12345

so it is the third one right?

13. candyme

That's right!

14. hayhay12345

thanks!! do u miind checking a few more for me i am pretty sure they are right i just want to make sure.

15. candyme

Sure

16. hayhay12345

17. hayhay12345

18. hayhay12345

19. hayhay12345

20. candyme

Ok, on the first one the picture cut off that last piece of the equation. Based on your slope the answer is either b or c, but you need that number on the right side of the equals sign to finish it

21. candyme

The second one you posted you are correct

22. hayhay12345

for the first on it was x+2y=4

23. candyme

For this one there is no slope, so there won't be a number with the x. Vertical lines are always written as x=__. So this graph is x=2

24. candyme

$$\color{#0cbb34}{\text{Originally Posted by}}$$ @hayhay12345 for the first on it was x+2y=4 $$\color{#0cbb34}{\text{End of Quote}}$$ Ok, so when you divide by 2 you will have $y=-\frac{ 1 }{ 2 }x+2$

25. candyme

So on it your graph would be c because it hits the y axis at 2

26. hayhay12345

ohhhh ok thank you!! can u take a look at these two?

27. hayhay12345

28. candyme

For the vertical line above, you always write the equation as x=__. Since it crosses the x axis at (2,0) you write x=2

29. hayhay12345

i put the wrong one sorry

30. hayhay12345

its this one

31. candyme

Both of those are correct :)

32. hayhay12345

sweet i hate to ask again but could u check like 4-5 more for me plz?

33. candyme

I can do that :)

34. hayhay12345

35. hayhay12345

thats for one of them

36. hayhay12345

37. hayhay12345

i had b for 14 btw

38. hayhay12345

39. candyme

For that first one it is going to be d because it makes it skinny and it isn't negative so it won't flip upside down

40. candyme

For 14 you are correct

41. candyme

Also letter b for the one after that, because the > means dashed line and shaded above

42. hayhay12345

43. hayhay12345

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45. hayhay12345

thats all other than what i need to finish working out

46. hayhay12345

i just need those last one i posted checked before i finish the complete work

47. candyme

Sorry I froze up there for a few minutes. I'll look at these for you real quick

48. hayhay12345

ok and its all cool i was working out some others ones

49. candyme

The first one should actually be d because you want the shading to be on the bottom area.

50. hayhay12345

ohh ok

51. candyme

On the absolute value graph, you need to move that 4 over to the other side. That will make it y=|x+2|-4 so it is actually c

52. candyme

The one about DVDs was correct

53. hayhay12345

@candyme can you check these for me?

54. hayhay12345