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# Quadratic functions

- Draw the graph of the quadratic function y = x
^{2}- 4x + 5 - Draw the graph of the quadratic function y = -2x
^{2}- 8x + 1 - Transform the graph of y = (1/2)x
^{2}to y = (1/2)(x - 3)^{2}- 2 - Find the quadratic function by three points on the graph
- Transform the graphs of y = -x
^{2}- 2x to y = -x^{2}+ 4x - 3 - How to move the graph of y = 2x
^{2}to y = 2x^{2}+ 12x + 17? - Relation between the graph of a quadratic function and is coefficients
- How to find the quadratic function from graph?
- Solve quadratic equation by root extraction method
- Solve quadratic equation by factoring method
- Solve quadratic equation by completing square method
- Solve quadratic equation using formula method
- Prove the value of a polynomial is always larger than zero

The purpose of this website is to help students understand the topic of the mathematics talked in class. Help students improve the ability of self-studding. Hope students could listen carefully to the video and do the example your-self in order to find which concept to apply to solve this kind of problem, and review them later. Hope students could spend time on most important things such as, reading, writing, mathematics and science.

Mathematics can be self-learning. By good understanding mathematics, you can graduate from college no more than four years. So, you need to set a goal and works for your future, make progress each day, and get confident about yourself. Do each example yourself will help deep understanding those concepts in these topics. Opportunity is always for those who are prepared.

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