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Graphing Quadratic Equations

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Graphing Quadratic Equations

General Form

of a

Quadratic Equation

y = ax2 + bx + c

ax2 + bx + c = 0

- Rule 1 (the only rule)
- Find the G.C.F.
- Otherwise, look for something familiar

- Ask the following question:
- “Is the linear term missing?”
- If so, SQUARE ROOTS SEEM GOOD.

- If you take the square root of both sides of an equation, then you must get TWO answers.

Don't forget

the

- “FIRST TERM SQUARED PLUS TWICE THE FIRST TIMES THE LAST PLUS THE LAST TERM SQUARED.”
- Can be factored from a memorized formula.

- A difference of two squares can be factored.
- Remember that the inner and outer terms must be opposites.

A manufacturer determines that the number of drills it can sell is given by the formula where p is the price of the drills in dollars.

- At what price will the manufacturer sell the
- maximum number of drills?
- b. What is the maximum number of drills that can be sold?

or