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A linear equation where the x and y are on the same side of the equals sign.

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The point where the line crosses the y-axis. The "b" in y=mx+b

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The point where the line crosses the x-axis (horizontal).

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Horizontal lines have zero slope. The equations look like y=a number.

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Vertical lines have undefined slope. The equations look like x = a number.

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The number without a variable. In the example: y=6x + 9..9 is the constant and the y-intercept.

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The number before the variable. In the example: y=6x + 9..6 is the coefficient of x and the slope.

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A linear function that is proportional, goes through the origin and does not have a constant.

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http://www.amathsdictionaryforkids.com/dictionary.html

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Is not a straight line and does not have a constant rate of change.

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A function with a constant rate of change and is a straight line. It be written as a table, equation, and graph.