Solving Quadratic Equations
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 function | a nonlinear function that can be written in the standard form
y = ax^2 + bx +c, where a =/= 0
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completing the square | a method for solving quadratic equations; in this method, a constant c is added to the expression x^2 + bx so that
x^2 + bx + c is a perfect square trinomial
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quadratic formula | the formula that can be used to find the real solutions of the quadratic equation ax^2 + bx + c, where a =/= 0 and
b^2 - 4ac >= 0
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discriminant | the expression b^2 - 4ac of the associated equation
ax^2 + bx + c = 0; the expression uder the radical sign b^2 - 4ac in the quadratic formula
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roots | the solutions of a polynomial equation
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square root | if b^2 = a, then b is a square root of a
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zero (of a function) | an x-value for which f(x) = 0
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Created by:
maddymoo11
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