Quadratics
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 second degree polynomial function where a, b, and c are real numbers
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| axis of symmetry | line through the graph of a parabola that divides the graph into two congruent halves
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| vertex | the axis of symmetry will intersect a parabola at this point
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| maximum/minimum value | the y-coordinate of the vertex of a quadratic function
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| quadratic equations | quadratic functions that are set equal to a value
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| roots | solutions of a quadratic equation
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| FOIL method | stands for: first, inner, outer, last. Uses the distributive property to multiply binomials.
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| pure imaginary numbers | square roots of negative real numbers
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| completing the square | manipulating the equation until one side is a perfect square, then solving using the square root property
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| quadratic formula | a formula that can solve any quadratic equation. this formula can be derived by solving the standard form of a quadratic equation.
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| discriminant | the part of the quadratic formula that is under the square root sign
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| quadratic term | the "ax^2" in a quadratic funtion
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| linear term | the "bx" in a quadratic function
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| constant term | the "c" in a quadratic function
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| parabola | the graph of a quadratic function
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| zeros | the x-intercepts of a parabola.
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| factored form | 0= a(x - p)(x - q)
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| imaginary unit i | defined to be "i^2 = -1".
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| complex number | when a real number and an imaginary number cannot be combined so the equation is left alone. example: 2+4i
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| complex conjugates | two complex numbers of the form of a + bi and a - bi. the product of this is always a real number
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To hide a column, click on the column name.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
sethweir
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