Quadratics

[ZzKingz]

Can someone please tutor me on quadratics? I am trying to be placed into a really high math class, so help would be appreciated.
What I know:

Linear and non-linear relationships
coordinates
Pythagorean Theorem
Basic Math
Square Roots
Exponents
Variables
What a quadratic looks like

I know a lot more than that but those were the most relevant.

Please help me, I am a visual learner, so pics and explanations would be appreciated!

Thnx!:D

[Bougainvillea]

These are basic level subjects.

Do you have a textbook?

[Perseus]

I'll tell what a quadratic is since you are dying to know. A quadratic equation is an equation that be written in the standard form ax^2 + bx + c = 0 where a does not equal 0. Here is an example x^2+9x+10. You usually factor quadratics and a quadratic graphs to a parabola. Facortoring quadratics are easy, but, are you having trouble learning them or have you learned what they are yet? If you haven't even seen a quadratic before, just wait till you learn it in Math I(what it's called in Georgia). I'm in accelerated Math I and quadratics are some of the easiest things we learned. We are on harder stuff now. :P

[INFERNO]

Can someone please tutor me on quadratics? I am trying to be placed into a really high math class, so help would be appreciated.
What I know:

Linear and non-linear relationships
coordinates
Pythagorean Theorem
Basic Math
Square Roots
Exponents
Variables
What a quadratic looks like

I know a lot more than that but those were the most relevant.

Please help me, I am a visual learner, so pics and explanations would be appreciated!

Thnx!:D

Quadratic functions are of the form ax^2+bx+c. Recall from linear functions, y= mx+b, that b in here was the y-intercept. For quadratic functions, c is the y-intercept. Also, recall that in linear functions, m was the slope. In quadratic functions, a is the value that determines whether the parabola opens up or opens down. The value of b is able to determine the shift of the parabola.

What you should also learn are the various methods for using quadratic equations, such as completing the square, the Quadratic Formula and methods of factorizing, as well as how to interpret the various forms. The best way to understand these ways are to see examples and graphs of them, so here are two pretty good links:
CLICKIE HERE #1 (http://www.nipissingu.ca/calculus/tutorials/quadratics.html)

This one is a video where someone shows you step-by-step on how to complete the square:
CLICKIE HERE #2 (http://video.google.com/videoplay?docid=1462460860699797262#docid=277874380290503598)

Here is a link on the Quadratic Formula:
CLICKIE HERE #3 (http://www.purplemath.com/modules/quadform.htm)

What you can end up doing later on, mainly when you've learned calculus is to graph various equations (i.e. cubic, quartic, etc...). You can factor those too without calculus just it usually ends up getting somewhat messy and I find using calculus to graph the equation is far better.

Later on, if you do this, you'll see how after you've learned basic calculus, even simple linear lines (i.e. y = mx+b) are a pain in the ass because you have to do them in 3-D involving planes. Math goes a lot harder from there though.

[ZzKingz]

i still don't get it. i am beginning to, but my friend is in 10th honors, so maybe i could ask him. thanks anyway! i learned something!