Skethcing+Quadratic+Graphs

=** Sketching Quadratic Graphs **=

Expanded form y = ax^2+bx+c A Quadratic graph has a exponents next to certain numerals or letters unlike a polynomial a Quadratic can have whatever exponent it wants in it. An example of a Quadratic Graph is as follows: Y= -7X^2 + 5
 * Sketching Quadratic Graphs **

Solve this following expression, 0= X^2-5X
 * Solving Quadratic Equations **

1. Write down the equation --- 0= X^2-5X 2. Factorize by removing the common factor -- 0= X(X-5) 3. Use the Null Factor Law --- X=0 or X-5=0 4. Solve Equations (where necessary) --- X=5 5. Check ---X=0: LHS=0^2 - 5X0 = 0 ---X=5: LHS=5^2 – 5X5 = 0

LHS = Left Hand Side



From the given equation Y= 3X^2 +6X
 * Method **

Use a table to create a set of points for yourself


 * X || -3 || -2 || -1 || 0 || 1 || 2 || 3 ||
 * Y || 9 || 0 || -3 || 0 || 9 || 24 || 45 ||