Quadratic Functions

Standform: ax^2 + bx + cy^2 + dy + e=0
An equation where A=C, it a circle.
Example: 2x^2 +2y^2 = 16



An equation where A=C=0 is an example: 4x^2 + 8y +6

An equation where A or C has opposite signs is a
hyperbole
Example: 2x^2 - 2x^2 = 8


An equation where A=C and Signs are the same, is an ellipse.
Example: 3x^2 + 4y^2 = 16

Multiplying Matrices

   A       B
[3 2]  [2 4 5]
[2 4]*[3 1 4]
[2 1] 


Above are our matrices that I will use to demonstrate how to multiply matrices.
First, you must find the dimensions of the two matrices. Matrix A's dimensions are 3 by 2. Matrix B's dimensions are 2 by 3. In order to multiply, you must make sure the column mathces with the row. in this one, 2 X 3 X 3 X 2. this means we can multiply.

Second, we multiply.
Our answer should be:
[12 14 23]
[16 12 26]
[7    9  14]