Question

The point (2, 1)is a solution to which of the following equations

Answer 1

Please help

Answer 2

are there any answer choices???

Answer 3

Yes just wait a minute please;)

Answer 4

ok

Answer 5

A.2x+y=5 and -2+y=2
B.-2-y=-5 and 2x-y=2
C.-x+y=3 and 3x+y=-5
D.x+y=3 and 3x-y=5

Answer 6

Hello @Eli_Moses are you still there

Answer 7

If @Eli_Moses is unable to help for some reason, just mention me and I can.

Answer 8

ok please help me

Answer 9

Ok, sure. To find if a given ordered pair is a solution to a given equation you have to substitute in the x and y values given in the ordered pair (Remember, an ordered pair is "(x,y)") into the given equation(s). So, what x and what y value is given in the original ordered pair?

Answer 10

The easiest to do (if this was a test) was to plug in the point 2 for x and see if you get -1 as an answer

Answer 11

1* as an answer

Answer 12

ok idk what x and y is

Answer 13

Ok, just keep in mind what I said about ordered pairs: An ordered pair is, in it's most basic form, "(x,y)". Where x is the x value, and y is the y value. So, what's the ordered pair given in the instructions?

Answer 14

Ok I think in the first equation the y is 0

Answer 15

No, look at the very first thing you said in the instructions. What is the ordered pair given? (You may be right, but i'm not sure where you're getting that y is 0)

Answer 16

Oh I think the oreed pair I'd 2, q

Answer 17

Ordered pair is 2,1

Answer 18

Correct. So, given what I've told you about how an ordered pair is structured, what is the x value given in it?

Answer 19

2

Answer 20

Yep, now what is the y value?

Answer 21

1

Answer 22

Correct. Now, let's look at the first possible answer. Please restate possible answer A for me.

Answer 23

2x+y=5 and -2+y=2

Answer 24

Yep. So now, let's take the x and y values we get from the given ordered pairs, and plug them in for the x and y in "2x+y=5". Please replace the variables with what the ordered pair's values as I just described, leaving parenthesis around the numbers in place of x and y.

Answer 25

I don't know what you mean by that

Answer 26

Yeah, I went too into detail there admittedly. Allow me to give an example.

Answer 27

No the answer would be 7

Answer 28

Exactly! Now, that was just to demonstrate what I mean by "plug in the x and y value you're given into the first given equation". Please try to do so.

Answer 29

Ok 2(2)+1=5 and -2(2)+1=2

Answer 30

The first equation is true and the second one is not

Answer 31

Perhaps you simply mistyped the second equation there, but the way you gave it early on was "-2+y=2". You put a number next to the "-2" in the second equation like there was an equation there.

Answer 32

Well how am I suppose to do it

Answer 33

Either way, let's move on, I believe you understand what you're doing. Let's go to B. If you get what you're doing, please plug in the x and y value where needed into the equations answer B gives us, and list what you get as you just did.

Answer 34

-2-(1)=-5 and 2(2)-(1)=2

Answer 35

Ok, now, are each of those equations true? Work them out if you can't solve them in your head.

Answer 36

No theyre not true

Answer 37

Correct! Now, on to C! Repeat the process please. If you can do it without my help, feel free to just tell me if it does or if it doesn't work out to be true.

Answer 38

No they're not true also

Answer 39

And I worked on d and that one is true

Answer 40

Indeed! That's it then, D is your answer.

Answer 41

Are you still confused about anything?

Answer 42

No so Thank you very much

Answer 43

You are most welcome! I have one request of you before we part: If you don't mind, please leave a testimonial for me. It helps! Thanks!

Answer 44

Idk whats that

Answer 45

Ok, no problem. Start by hovering over either my name or image (left of my replies), and click on "view detailed profile". From there you can leave a testimonial, which tells others how well or bad you think I did as a tutor. Others, if they ever question if I'm worth allowing to tutoring them can look at that and see how you felt I did.

Answer 46

All I ask about it is that you're honest. Again, you don't have to if you don't want to, I just appreciate it if you have time to.

Answer 47

Ok I will try to find and give you a good review

Answer 48

Thanks, have a nice evening.

Answer 49

You to