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11 Cards in this Set
- Front
- Back
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Absolute Value
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Distance of a number from zero on a number line. Since distance is positive, the absolute value of any number must be positive.
Caution: be careful when taking the absolute value of a variable. ie/| 5 | = 5 |- 5| = 5 |
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Acute angle
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An angle that measures between 0 and 90 degrees
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Acute triangle
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All angles in the triangle are acute
ie/A 40 - 60 - 80 triangle is acute |
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Additive Inverse
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A number and its opposite When you add them they equal zero.
ie/5 and -5 are inverses because 5 + (-5) = 0 |
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Adjacent angles
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Two coplanar angles with a common side, a common vertex, and no common interior points
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Algebra
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The study of equations using variables.
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Algebraic expression
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A collection of letters (variables) and real numbers (constants) combined using the operations of addition, subtraction, multiplication, division, and exponentiation.
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Alpha Α α
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Greek letter frequently used to represent angles
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Arc
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Part of a circle
Exactly half the circle is called a semicircle. Less than half is a minor arc and more than half is a major arc. |
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Axis of Symmetry
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The line about which you can reflect a graph onto itself When you fold a graph on the axis of symmetry, both sides match For the parabola,
y = x2 + 2x - 1 the axis of symmetry is the line x = -1 |
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Bar Graph
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A graph used to compare amounts
Graph where data is shown in bars |
