Unit 5 vocabulary words for test
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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| Absolute value functions | A function with a V-shaped graph that opens up or down.
y=|x|
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| Constant of variation for direct variation | The nonzero constant k in the function y=kx
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| Constant of variation for inverse variation | The nonzero constant k in the function y=k/x
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| Direct variation | A linear function defined by an equation of the form y=kx, where k≠0
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| Linear equation | An equation whose graph forms a straight line.
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| Linear parent function | The simplest form of a linear function.
ex. y=x
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| Opposite reciprocals | A number of the form -b/a, where a/b is a nonzero rational number. The product of a number and its opposite reciprocal is -1.
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| Parallel lines | Two lines in the same plane that never intersect. They never have the same slope.
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| Parent function | The simplest function with these characteristics.
ex. y=x is the ___ ___ for the family of linear equations of the form y=mx+b
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| Perpendicular lines | Lines the intersect to form right angles. Two lines are ___ if the product of their slope is -1.
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| Point-slope form | A linear equation of a non-vertical line written as y-y1=m(x-x1). The line passes through the point (x1,y1) with slope m.
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| Rate of change | The relationship between two quantities that are changing. Also called slope.
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| Slope | The ratio of the vertical change to the horizontal change.
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| Slope-intercept form | y=mx+b, where m is the slope of the line and b is the y-intercept.
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| Standard form of a linear equation | Ax+By=C, where A, B, and C are real numbers and A and B are not zero
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| Translation | A transformation that shifts a graph horizontally, vertically, or both.
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| X-intercept | The x-coordinate of a point where a graph crosses the x-axis.
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| Y-intercept | The y-coordinate of a point where a graph crosses the y-axis.
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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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stillaninnocent
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