Unit 7: Equations and Inequalities
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| > | greater than
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| < | less than
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| = | equal to
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| equation | a mathematical statement containing an equals sign, to show that two expressions are equal.
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| inequality | a mathematical statement containing a comparison symbol to show two expressions are not equal.
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| ≤ | less than or equal to, maximum, at most
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| ≥ | greater than or equal to, minimum, at least
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| solution | the answer to a problem
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| set | collection of items noted with curly braces { } , for example: the set of prime numbers under 20 = {2, 3, 5, 7, 11, 13, 17, 19}
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| solution set | a group of answers to a problem when there is more than one correct answer
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| solve | the process of determining the answer to a problem, specifically, an equation or inequality
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| evaluate | to find a numerical value to an expression, "work out" an expression
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| variable | a letter or symbol representing a varying quantity, for example, n in 10 + n.
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| constant | a quantity having a fixed value that does not change or vary, such as a number.
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| coefficient | a number which multiplies a variable
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| Inverse operation | opposite, reverse operations such as addition and subtraction, or multiplication and division.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
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