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30 Cards in this Set
- Front
- Back
variable |
a letter that stands for an unknown amount |
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numeric expression |
a combination only numbers and operations |
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inequality |
two amounts shown to be not equal |
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coefficient |
a number before a variable; the number is multiplied by the variable |
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term |
numbers and/or variables separated by addition and/or subtraction |
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algebraic expression |
combination of numbers and/or variables with operations |
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equation |
an expression with an equal sign and an answer |
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like terms |
terms with the same variable raised to the same power |
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evaluate |
to find the value |
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equivalent |
two amounts with the same value |
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solve |
find the value of the variable |
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simplify |
do all that can be done; combine like terms |
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constant |
a number that cannot change |
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algebraic equation |
an algebraic expression with an equal sign that needs to be solved |
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algebraic equation |
3a + 2b = 24 |
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numeric expression |
2(3+4) - 5 * 3 + 4(2-6) |
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algebraic expression |
2a + 3(b-c) - a + 4b |
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relationship |
how two sets of data relate to each other |
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relation |
a set of ordered pairs |
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domain |
the x values in a set of ordered pairs |
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range |
the y values in a relation |
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function |
a relation in which each x value is paired with only one y value |
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function |
{(3,4), (5,9), (2, 7), (8, 7)} |
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not a function |
{(3,4), (5,9), (2, 7), (3, 6)} |
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positive relationship |
both sets of data change in the same way; if one increases the other increases, or vice versa. |
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negative relationship |
sets of data change in opposite ways; if one increases the other decreases, or vice versa. |
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positive relationship |
the cost of a restaurant bill and the number of people having a meal |
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negative relationship |
the sale of hats & gloves and the outside temperature |
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no relationship |
the number of students in class and the number of tests given in a marking period |
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scatter plot |
a graph showing the relationship between two sets of data |