Unit 3 Vocabulary
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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| Constant of proportionality | the constant value of the ratio of two proportional quantities x and y
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| Direct variation | a relationship between two variables that is expressed by an equation where one variable is equal to a constant times another.
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| Linear Equation | a equation where each term is a constant or the product of a constant.
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| Point-slope form | the equation of a straight line in the form y − y1 = m(x − x1) where m is the slope of the line and (x1, y1) are the coordinates of a given point on the line
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| Slope-intercept form | the equation of a straight line in the form y = mx + b where m is the slope of the line and b is its y-intercept
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| Rate of Change | The speed at which a variable changes over a specific period of time.
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| Slope | The steepness of a line
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| x-intercept | the x-coordinate of a point where a line, curve, or surface intersects the x-axis
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| y-intercept | the y-coordinate of a point where a line, curve, or surface intersects the y-axis
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| unit rate | the ratio of two measurements in which the second term is 1.
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| Proportional relationship | Two quantities are proportional if they vary in such a way that one of them is a constant multiple of the other.
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| Intersecting Lines | Lines that have one and only one point in common are known as intersecting lines.
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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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