Definitions and Facts from the NSW Year 9 Equations and Inequations Topic
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| equation | a statement that two quantities are equal
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| solve | to find the answer to a problem
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| formula | an equation showing the relation between variables.
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| variable | a quantity represented by a symbol (usually a letter) that can be
any of a range of values
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| inverse | another word for opposite
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| inequality | a statement that two quantities are not equal
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| linear equation | an equation where the highest power of the variable is 1
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| backtracking | a process used to solve an equation by undoing what has been done to the variable in the equation.
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| subject of the formula | stands alone on the left-hand side of the equality sign.
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| pronumeral | another name for Variable
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| substitute | putting values where the letters or symbols are
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| solution | a value, or values, we can put in place of a variable (such as x) that makes the equation true.
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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.
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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:
wdobson