## anonymous one year ago Which of the following lines is parallel to x = 8? A. 3y = 16 B. x = 7 C. x = y D. y = 8

1. marihelenh

If it is parallel, it never intersects. x=8 is a vertical line, so you are looking for another vertical line. (It will be equal to x.)

2. anonymous

I'm still not understanding, sorry.

3. jennyrlz

hello :)

4. anonymous

Hi :o

5. jennyrlz

ok so if a line is parallel. They will never inersect or touch

6. anonymous

B. x = 7

7. anonymous

Yeah

8. jennyrlz

It is b :)

9. jennyrlz

but let me show why :P

10. anonymous

11. jennyrlz

|dw:1437426342947:dw|

12. jennyrlz

since it is only x= we know it is a verical line

13. jennyrlz

meaning that the answer has to be paralel to x=; in other words it has to be along the same axis (X)

14. jennyrlz

make sense o3o?

15. anonymous

Thank you I understand how to figure that out but there's a similar question I wanna ask that's mind Boggling!

16. jennyrlz

17. jennyrlz

ill see what i can do :3

18. anonymous

Select the equation of the line that passes through the point (3, 5) and is perpendicular to the line x = 4. y = 5 x = 5 y = 4 x = 3

19. jennyrlz

ok sec let me work it out xD

20. anonymous

Lol Take you're time :P

21. jennyrlz

ok simple :)

22. jennyrlz

do you know what perpendicular means?

23. anonymous

I'm not sure I remember :/

24. jennyrlz

ok it basically means they interest' for examply the xy plain is made up of two perindicular lines

25. jennyrlz

|dw:1437426818815:dw|

26. anonymous

Oh like They intersect though?

27. jennyrlz

yup

28. jennyrlz

|dw:1437426907162:dw| so the line you are looking for has to go through point 3,5 and be perpendicular to x=4

29. anonymous

Yeah

30. jennyrlz

so to be perpendicular (and intersect) it needs to be on the y axis :)

31. anonymous

Lemme guess y=4

32. jennyrlz

|dw:1437427013148:dw| close

33. jennyrlz

it is y=5 because the line needs to go through 3,5

34. jennyrlz

if something does not make sense, let me know :)

35. anonymous

Thank's sooo much @jennyrlz you helped me a lot! But mind if I ask you one question I want to know If my answer is correct :P

36. jennyrlz

for questions like this, drawing it out makes it 10x easier xD

37. jennyrlz

sure :)

38. anonymous

Select the coordinates of two points on the line y = −2. (2, −2) and (−2, 2) (−2, −2) and (−2, 0) (2, −2) and (0, −2) (−2, 2) and (−2, −2)

39. anonymous

Sketchy but I think it's maybe B.

40. jennyrlz

ok so we know it is on the y axis

41. jennyrlz

|dw:1437427241931:dw|

42. jennyrlz

(x,y) it cant be B, because b is saying that (-2,0) is a point

43. jennyrlz

44. jennyrlz

i am telling you, drawing makes it so much easier xD

45. anonymous

Thank you very much! you helped me a lot today!

46. jennyrlz

No problem :)

47. jennyrlz

fan me, if you want help another day xD

48. jennyrlz

i am barley on :P

49. jennyrlz

just wondering what math is this for?

50. anonymous

Hw