## Destinyyyy one year ago Does anyone on here know how to solve these two questions??

1. Destinyyyy

2. arindameducationusc

3. Destinyyyy

For the viewing rectangle Id like to know how to solve it with a TI- 84 calculator

4. anonymous

did i help u yesterday? or was i wrong

5. Destinyyyy

All you did yesterday was give me the answer. I want to know how to solve it.

6. anonymous

ohhh ok

7. anonymous

well for the first attachment u have u look at ur answers and try to match it up cuz with the muliple choice it either A. give all fase and 1 true or B. give u the correct one and gives u mixed up mumbo jumbo.

8. Destinyyyy

What?

9. anonymous

so for example the answer choice A is y^2=1-3x well -3x is in the correct slot but 1 is not so thats not the answer so for By^2=-3-x well x is 0 so that means that there is no -3 in its y slot to created a y^2 for C y^=x+1 there is a x and tere is a 1 in the y slot beside the x so look theres one answer thats may be it and D y^2=x-3 there is a x but in the y there is no -3 only -2 and -5 so that rules all of the choices but C soo understand a bit better

10. Destinyyyy

Id like to know how to solve the first problem first.

11. anonymous

i jst told u

12. anonymous

ok u have u questions pulled up right

13. Destinyyyy

Yes I have both showing. And everything you've said makes no sense.

14. anonymous

so for multiple choice A what does it say

15. Destinyyyy

@Nnesha @arindameducationusc said you can help me

16. Destinyyyy

I have no clue it has a bunch of lines.

17. anonymous

$Y _{2}=1-3x$

18. Nnesha

|dw:1439994605469:dw| when you substitute x for its value you should get y_2 value

19. anonymous

uh i try kk sorry

20. Destinyyyy

Um? y2= 1-3 (-3) like that? But how do I know which is right?

21. Destinyyyy

I assume it has to be true 0=0 ?

22. Nnesha

|dw:1439994744780:dw| substitute x for its value in all equation you should correspons y_2 value

23. Nnesha

24. Destinyyyy

Okay... I dont quite understand "substitute x for its value in all equation you should correspons y_2 value "

25. Nnesha

|dw:1439994998298:dw| okay when x= -3 y_2 should be equal to 0 now start with option A $\huge\rm y_2 =1-3x$ replace x with -3 do you get 0 ?

26. Destinyyyy

It equals 10

27. Nnesha

but it should corresponds to y_2 you should get 0 not 10 so that's why A is wrong

28. Nnesha

|dw:1439995292780:dw| substitute x by its value

29. Destinyyyy

It equals 0

30. Nnesha

okay now to make sure you should plugin other x value |dw:1439995411064:dw| when you plug in -1 for x you should get -2 and so on

31. Destinyyyy

Okay so the correct answer is B. I have a few other questions like this could you explain them?

32. Nnesha

i'll try

33. Destinyyyy

Does the graph of Y2 pass through the origin? The graph crossed the the y-axis at? (ordered pair) The graphs of Y1 and Y2 intersect at the points

34. Nnesha

|dw:1439995835823:dw| origin when x and y coordinate equal to 0

35. Nnesha

|dw:1439995919110:dw| y-intercept is a point where line cross y-axis

36. Nnesha

|dw:1439995962596:dw| solution where both lines intersect

37. Nnesha

|dw:1439996005052:dw| this is the equation for y_2 right now find y_1 equation use same x values but when you substitute x for its value you should get y_1 values this time

38. Destinyyyy

Um which question are you explaining??

39. Nnesha

$$\color{blue}{\text{Originally Posted by}}$$ @Destinyyyy Does the graph of Y2 pass through the origin? The graph crossed the the y-axis at? (ordered pair) The graphs of Y1 and Y2 intersect at the points $$\color{blue}{\text{End of Quote}}$$ it's a part of first question right ?

40. Destinyyyy

I have no clue. Everything your saying is my only example. I dont know how to solve any of this. My book doesnt show anything. But an example I just found says to solve for the origin by the X=0 and the Y2=0 if both are not 0 then the answer is no.

41. Destinyyyy

The three questions are separate.

42. Nnesha

yes right . so we need to TWO EQUATIONS to graph so then we can find y-intercept

43. Destinyyyy

Um okay??

44. Nnesha

btw i can give you a hind so then you don't have to graph them.

45. Nnesha

hint*

46. Nnesha

y-intercept is a point where line cross y-axis when x=0 so when x=0 y_1 equal to what and y_2 equal to what look at the table

47. Destinyyyy

Y1= 1 Y2= -3

48. Nnesha

yes right so (0,1)(0,-3)

49. Nnesha

now last one when they intersect at what value of x , y_1 and y_2 values are same

50. Destinyyyy

Are you asking what value of x has y1 and y2 the same or all three the same??

51. Nnesha

no just y_1 and y_2 should be the same

52. Destinyyyy

Okay. X=2

53. Nnesha

yes right so they intersect at (2,-5)

54. Nnesha

to find answer of first question *Does the graph of Y2 pass through the origin?* origin is a point when x and y = 0 x=0 y =0 so you can replace x with 0 into y_2 equation if you get 0 for y then yes otherwise answer is no

55. Destinyyyy

Ohhh.. I thought it was no if the y didnt have 0 in the chart.. Does it have to be y2 or can it be y1?

56. Destinyyyy

Can you show me how to solve the first problem I posted? The viewing rectangle.

57. Destinyyyy

I can post it in a new question if you want.

58. Nnesha

no they are asking for y_2 so when x=0 y_2 must equal to 0

59. Destinyyyy

Okay

60. Nnesha

hmm not sure about the 2nd one sorry.

61. Destinyyyy

Thats okay. Thank you for explaining the other ones!

62. Nnesha

my pleasure :=)

63. arindameducationusc