Quadratic Functions
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Quadratic Expression | ax^2 + bx + c
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Binomial Square Theorem | (x + y)^2 = x^2 + 2xy + y^2
(x- y)^2 = x^2 - 2xy + y^2
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Absolute Value-Square root theorem | for all numbers x, square root x^2 = [x]
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Quadratic Formula | x = -b plus or minus, the square root b^2 - 4ac/ 2a
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Imaginary Numbers | a number that is the square root of a negative real number.
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Complex Number | A number that is in the form a + bi where a and b are real numbes and i= the square root of -1. a is called the real part and b is called the imaginary part.
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Discriminate Theorem | two real solutions- b^2 - 4ac > 0
one real solution- b^2 - 4ac = 0
two complex conjugate solutions if b^2 - 4ac < 0
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Created by:
victoriapugsley
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