Unit 4 Quadratics FLASHCARDS

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TERM

A single mathematical expression. It can be a number, a variable, or the product of numbers and variables. Terms are separated by plus or minus signs in an expression.

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CONSTANT

A term in an algebraic expression that does not contain any variables. It is a fixed value that does not change.

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COEFFICIENT

The number that multiplies a variable.

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DEGREE

The highest power of the variable in the expression. It indicates the greatest exponent of the variable present in the polynomial.

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Quadratic Expression

An expression with a highest degree of 2, usually in the form ax² + bx + c

Example: 2x² + 3x + 1

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Quadratic Equation

A quadratic expression set equal to zero

Example: ax² + bx + c = 0

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Standard From a Quadratic

A polynomial written such that each term in order from highest degree to lowest, from left to right, with the constant term at the end.

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Parabolic

Shaped like a parabola, which is the U-shaped curve of a quadratic graph.

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Solutions / Roots / Zeros / X-Intercepts

The values of x that make the quadratic equation equal zero (where the graph crosses the x-axis).

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Maximum / Minimum

The highest or lowest point on the parabola (vertex). If the parabola opens up, it has a minimum; if it opens down, it has a maximum.