Ok so I am learning quadratics and I know how to do them but how in the world do you make the T-chart I am confuso?

Question

ja1 · Answer

Let's say I have this:

$$y = x^{2} + 2x - 3$$

ja1 · Answer

After I found the vertex and got 
(-1, -4)  

How do I make the T-chart to finish the the parabola?

ja1 · Answer

@Hero @dumbcow @mathstudent55 @tcarroll010

hero · Answer

A T-Chart?

ja1 · Answer

Yes that's what the lesson calls it.

ja1 · Answer

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hero · Answer

I'd call it an xy chart

anonymous · Answer

lol

ja1 · Answer

xD yes that, the lesson just words it differently

hero · Answer

Basically, just start with x = 0, 1, 2, 3, 4...etc. 

Then find the y values. Also do the opposites of x as well

ja1 · Answer

But for the sake of having a small chart it says to find the 2 x values to the right and 2 to the left.

hero · Answer

Okay, well, do that then :)

ja1 · Answer

So:
|dw:1370384715935:dw|

ja1 · Answer

Ok thanks I understand a bit more now, I didn't notice that it meant something that simple xD thanks

hero · Answer

Well, now you know.... #goodwork

ja1 · Answer

haha thanks :)

anonymous · Answer

WOW I WAS HAVING TROUBLE ON A QUESTION JUST LIKE THIS ONE 

THIS REALLY HELPED THANKS