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a constant function is a function that is written y = k, where k is a real number. The y value is constant for all values of x. The graph of a constant function is a horizontal line. |
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| the description of the relationship between two data |
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| a relation (set of ordered pairs) such that each x value is associated with only one y value. |
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| the line that best represents the trend established by the points in a particular scatter plot. |
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| the graph of a collection of ordered pairs. |
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| the steepness of a line, which may be calculated by finding the ratio of the difference between the y values of two points on the line to the difference between the corresponding x values of those two points on the line. |
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| one way to write an equation of a line; uses the form y = mx + b, where m is the slope and b is the y-intercept. |
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| the point where a line crosses the x-axis |
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| the point where a line crosses the y-axis |
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| a way to write the equation of a line Ax + By = C where A, B, and C are all integers |
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| a horizontal line is written in the form y = b and has a slope of zero |
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| a vertical line is written in the form x=a and has a slope of undefined |
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| a sequence of numbers in which the difference between any two consecutive terms is the same. |
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