The Quadratic Equation has a degree to the power 2 (when we say x squared). We say quadratics are polynomials of the degree 2, in the form of ax^2 + bx + c. Where a,b,c are constants, and a is not 0. The graph of a quadratic is a parabola, almost a U shape, like this :
![]() | |
The shape of a parabola |
When a (coefficient of is x2 )is positive, a U shaped parabola will be the graph. When a is negative, it will be an upside down U. This is one of the transformation of functions, I will be showing you in a later post ( which results in a reflection in the x-axis)
Where this curve, crosses the x-axis, are known as the roots. These roots are the "solutions" when we solve these functions as equations by equalling them to 0, and using one of the 3 methods.
The Discriminant
The Discriminant, is an expression, which allows us to find out the nature of the roots of a quadratic equation. It is given by :
There are 3 possibilities of the discriminant :
* Discriminant > 0 (This means the quadratic has two distinct real roots)
*Discriminant < 0 (This means the quadratic has two distinct complex / no real roots)
*Discriminant = 0 (This means the quadratic has 1 real root / repeared root)
I shall provide all three posibilities with an example, an my image notes, along with some graphs.
I would like to thank you for the efforts you have put in writing this website.
ReplyDeleteI'm hoping to see the same high-grade blog posts from you later on as well. In fact, your creative writing abilities has inspired me to get my own, personal website now ;)
My web blog; clear
Hi, I do believe this is a great blog. I stumbledupon it ;) I will come back
ReplyDeleteonce again since i have book marked it. Money and freedom is the best way
to change, may you be rich and continue to guide other people.
my blog post; Cheap Louis Vuitton Handbags
Thanks so much for the explanation :)
ReplyDeleteI have told all my friends about it in hopes that they can see how good it is
Keep guiding and writing, you'll be rewarded someday
baaimiing78398s
ReplyDeletegolden goose outlet
golden goose outlet
golden goose outlet
golden goose outlet
golden goose outlet
golden goose outlet
golden goose outlet
golden goose outlet
golden goose outlet
golden goose outlet