Does anyone on here know how to solve these two questions??

- Destinyyyy

Does anyone on here know how to solve these two questions??

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- schrodinger

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- Destinyyyy

Please explain how to solve.

##### 2 Attachments

- arindameducationusc

@Nnesha will help you

- Destinyyyy

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

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## More answers

- anonymous

did i help u yesterday? or was i wrong

- Destinyyyy

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

- anonymous

ohhh ok

- 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.

- Destinyyyy

What?

- 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

- Destinyyyy

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

- anonymous

i jst told u

- anonymous

ok u have u questions pulled up right

- Destinyyyy

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

- anonymous

so for multiple choice A what does it say

- Destinyyyy

@Nnesha @arindameducationusc said you can help me

- Destinyyyy

I have no clue it has a bunch of lines.

- anonymous

\[Y _{2}=1-3x\]

- Nnesha

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

- anonymous

uh i try kk sorry

- Destinyyyy

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

- Destinyyyy

I assume it has to be true 0=0 ?

- Nnesha

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

- Nnesha

gimee a sec m*backspace* button isn't working on this page brb

- Destinyyyy

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

- 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 ?

- Destinyyyy

It equals 10

- Nnesha

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

- Nnesha

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

- Destinyyyy

It equals 0

- 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

- Destinyyyy

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

- Nnesha

i'll try

- 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

- Nnesha

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

- Nnesha

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

- Nnesha

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

- 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

- Destinyyyy

Um which question are you explaining??

- 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 ?

- 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.

- Destinyyyy

The three questions are separate.

- Nnesha

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

- Destinyyyy

Um okay??

- Nnesha

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

- Nnesha

hint*

- 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

- Destinyyyy

Y1= 1 Y2= -3

- Nnesha

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

- Nnesha

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

- Destinyyyy

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

- Nnesha

no just y_1 and y_2 should be the same

- Destinyyyy

Okay. X=2

- Nnesha

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

- 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

- 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?

- Destinyyyy

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

- Destinyyyy

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

- Nnesha

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

- Destinyyyy

Okay

- Nnesha

hmm not sure about the 2nd one sorry.

- Destinyyyy

Thats okay. Thank you for explaining the other ones!

- Nnesha

my pleasure :=)

- arindameducationusc

@Destinyyyy
Sorry I could not help you today, I had to go outside.
I will definitely help you next time....

- Destinyyyy

That's okay,

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