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25 Cards in this Set
- Front
- Back
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union
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two sets of numbers that are joined together
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intersection
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the intersection of two sets of numbers are all the characters that are part of set A and include set B.
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complement
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A complement of a set A refers to things not in (that is, things outside of),
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null set
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the empty set.
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hypotenuse
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this is the longest side of the right angle; usually the side opposite of the right angle.
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legs
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the sides of the triangle.
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pythagorean theorem
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In any right triangle, the area of the square whose side is the hypotenuse (the side opposite the right angle) is equal to the sum of the areas of the squares whose sides are the two legs (the two sides that meet at a right angle).
The theorem can be written as an equation: where c represents the length of the hypotenuse, and a and b represent the lengths of the other two sides. |
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square root
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A square root of a number x is a number r such that r2 = x, or, in other words, a number r whose square (the result of multiplying the number by itself) is x.
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rational numbers
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A rational number is any number that can be expressed as the quotient a/b of two integers, with the denominator b not equal to zero.
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irrational numbers
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an irrational number is any real number which cannot be expressed as a fraction p/q, where p and q are integers, with q non-zero and is therefore not a rational number
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exponent
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A mathematical notation indicating the number of times a quantity is multiplied by itself
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function
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the intuitive idea that one quantity (the argument of the function, also known as the input) completely determines another quantity (the value, or the output).
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equivalent expressions
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.Two algebraic expressions are said to be equivalent if their values obtained by substituting the values of the variables are same.
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combination method
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standard form of a linear equation
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substitution method
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system of linear equations
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system of linear equalities
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parallel lines
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perpendicular lines
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slope
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slope-intercept form
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absolute values
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independent variables
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dependent variables
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.. If every value of x is associated with exactly one value of y, then y is said to be a function of x. It is customary to use x for what is called the "independent variable," and y for what is called the "dependent variable" because its value depends on the value of x.
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