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26 Cards in this Set
- Front
- Back
- 3rd side (hint)
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additive inverse
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Two numbers with a sum of zero.
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Example:
23 and -23 are additive inverses because -23 + 23 = 0. |
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alternate exterior angles
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Nonadjacent exterior angles found on opposite of the transversal.
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Example:
/ 1 & / 7, and / 2 & / 8 in diagram. |
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alternate interior angles
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Nonadjacent interior angles found on opposite sides of the tranversal.
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Example:
/ 4 & / 6, and / 3 & / 5 in diagram. |
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arithmetic sequence
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A sequence of numbers in which each term after the first is the result of adding a fixed number (called the common difference) to the previous term.
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Example:
The sequence 4, 10, 16, 22, 28, 34,... is an arithmentic sequence. The common difference is 6. |
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complementary angles
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Two angles whose measures add to equal 90 .
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Example:
/ BCA and / CAB are complementary angles in the diagram. |
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corresponding angles
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Pairs of nonadjacent angles that lie on the same side of a transversal of two lines and in corresponding positions.
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Example:
/ 1 & / 3 are coresponding angles and so are / 2 & / 4 in the diagram. |
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exponent
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A number that shows how many times a base number is used as a factor.
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Example:
In 3 , the 4 is the exponent, therefore 3 = 3 x 3 x 3 x 3 |
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function
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A relationship in which each member of the domain is paired with exactly one member of the range. A number of a domain is an input and the related number of the range is an output.
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Example:
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hypotenuse
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The side opposite the right angle in a right triangle.
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Example:
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inequality
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Mathematical sentence that contains or uses one of the symbols <, >, , , or =.
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Example:
k < -3 |
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irrational number
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A number that can be represented by a nonrepeating, nonterminating decimal.
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Example:
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legs
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The two shorter sides of a right triangle. Either of the two sides that form the right angle of a right triangle.
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Diagram:
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like terms
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Expressions that contain the same variables.
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Example:
3b + 12b = (3 + 12)b = 15b |
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linear equation
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Any equation whose graph is a straight line.
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Example:
y = 1/2x + 3 is linear because its graph is a line. |
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multiplicative inverse
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The reciprocal of a number.
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Example:
9/4 is the multiplicative inverse of 4/9. |
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Pythagorean Theorem
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In any right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the legs.
a + b = c |
a + b = c
Example: The right triangle shown has leg lengths 3 and 4 and hypotenuse length 5: 3 + 4 = 5 9 + 16 = 25 |
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radical sign
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The symbol used to indicate a nonnegative square root.
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rational number
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Any number you can write as a quotient of two integers a/b, where b is not zero.
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Examples:
3/5, -8, 8.7, 0.333..., 0, 17/4, -5 3/11. |
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relation
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A set of ordered pairs.
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Example:
{(0,2), (-3,2), (0,1)} |
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Scientific notation
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A way of reexpressing a number so that it is written as the product of a number greater than or equal to 1 and less than 10, and a power of 10.
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Example:
37,000 written as 3.7 x 10 |
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sequence
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A set of numbers that follow a pattern.
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Examples:
2, 2.3, 2.34, 2.345,... 3, 6, 9, 12, 15,... |
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significant digits
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Digits that represent an actual measurement.
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slope
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A ratio that represents the tilt of a line (the change in y to the corresponding change in x).
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Example & Diagram:
The slope of the given line is 2/4 or 1/2. |
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square root
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A number that when multiplied by itself equals the given number.
One of the two equal factors of a number. |
Example:
25 = 5 because 5 = 25 |
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supplementary angles
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Two angles whose sum of their measures is 180 .
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Example & Diagram:
A & D |
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system of linear equations
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Two or more linear equations.
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Example:
y = 3x + 1 and y = -2x - 3 |
