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Danielle Bryant

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
constant of proportionality   the constant value of the ratio of two proportional quantities x and y  
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Direct Variation   when two variables are related in such a way that the ratio of their values always remains the same  
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Linear Equation   an equation between two variables that gives a straight line when plotted on a graph  
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point-slope form   a method for graphing a linear equation on an x-y axis  
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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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rate of change   the ratio of the change in the output value and change in the input value of a function  
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slope   the slant or tilt of a line (rise over run)  
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x-intercept   where the graph crosses the x-axis  
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y-intercept   where the graph crosses the y-axis  
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unit rate   rate with a denominator of 1  
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proportional relationship   between two quantities is one in which the two quantities vary directly with one another  
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intersecting lines   the point where two lines meet or cross  
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