HELP ME PLEASE!!!!!!! I REALLY NEED HELP!!!!!!!!!!

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Pieces

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Jan 18, 2011
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I can't figure this problem out. I have tries 23 times and I can't figure it out. the question is Determine a relationship between the x and y values. write an equation. (-2,4)(-1,1)(0,0)(1,1) Can someone help me??????
This is all that I have tried:
14x/-7
4x+12
x-2+8
x/-1+2
x/2+5
2x/-2+2
10x/-2
20x/10
4x/-2
x/-4*8
22x/-1
x-2
3x+10
-3x-2
-4x-4
x+6
-5x-6
-4x/2
-6x/3
-8x/4
-12x/6
6x/-3
none of these work!!!
 
Hello, Pieces!

I can't figure this problem out. I have tries 23 times and I can't figure it out.
. . Of course not . . . it's not a linear function.

Determine a relationship between the x and y values. write an equation.
. . . \(\displaystyle (-2,4),\;(-1,1),\;(0,0),\;(1,1)\)
Click to expand...

We have:

. . \(\displaystyle \begin{array}{|c|c|} x & y \\ \hline \text{-}2 & 4 \\ \text{-}1 & 1 \\ 0 & 0 \\ 1 & 1 \\ \hline \end{array}\)

\(\displaystyle \text{Did you notice that: }\:x^2 \,=\,y\,?\)

\(\displaystyle \text{The equation is: }\:y \:=\:x^2\)

 
Pieces said:
I can't figure this problem out. I have tries 23 times and I can't figure it out. the question is Determine a relationship between the x and y values. write an equation. (-2,4)(-1,1)(0,0)(1,1) Can someone help me??????
This is all that I have tried:
14x/-7
4x+12
x-2+8
x/-1+2
x/2+5
2x/-2+2
10x/-2
20x/10
4x/-2
x/-4*8
22x/-1
x-2
3x+10
-3x-2
-4x-4
x+6
-5x-6
-4x/2
-6x/3
-8x/4
-12x/6
6x/-3
none of these work!!!
Click to expand...

It kind of looks like you are in the world of "wild guesses".

Did you try PLOTTING the given points? If you do that, you may get a clue about what form the relationship might take.

Please take a few minutes to plot the points. See if you have an idea what KIND of relationship would best accommodate the points you're given.

After you've done that, if you are still having trouble, please come back and give us the benefit of your thoughts.....
 
For this problem I am not supposed to plot the points. I am just supposed to find an equation for it. Thats how I find the relationship. Those guesses were all educated guesses. I just have to find the equation that fits
 
Pieces said:
For this problem I am not supposed to plot the points. I am just supposed to find an equation for it. Thats how I find the relationship. Those guesses were all educated guesses. I just have to find the equation that fits
Click to expand...

Ok....and I suggested that you plot those points so that you would have a better idea what kind of equation to write.

ALL of your "wild guesses" were linear...(and NONE of them were equations).....

If you plot the points, that may suggest to you that linear is not the way to go.

I get the definite feeling that you are not much interested in participating in any kind of "conversation" about how one goes about getting an answer to this kind of problem. And I'm not much interested in handing out an answer....
 
I didnt ask you to give me the answer though. We havent learned any of that other stuff yet so I dont understand anything your saying. I was just told to find an equation and given notes on how to do that.
 
Pieces said:
I was just told to find an equation and given notes on how to do that.
Click to expand...
BUT your "23 tries" are NOT equations; you got 23 expressions, like:
14x/-7
4x+12
Now can you "excuse us" for wondering a bit? Thank you.
 
I know that they wern't equations. I knew they were expressions. And I was just saying that it couldn't be the right answer. i figured out the answer anyways. it y=xsquared. so yea thanks and bye.
 
And that's why I suggested that you PLOT the given points. When you do so, you should see that the points lie on what appears to be a U-shaped curve, which should lead you to think about a quadratic equation.

So yes,

y = x[sup:33syyka6]2[/sup:33syyka6]

is an equation which fits the points you have.

When we ask you to try something, it's usually because we hope you'll get some helpful information by doing so.
 
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