## Chapter 6

##### Created by:

MRidgell  on November 18, 2010

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# Chapter 6

 rate of changeallows you to see the relationship between two quantities that are changing
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#### Definitions

rate of change allows you to see the relationship between two quantities that are changing
slope vertical change over the horizontal change, rise over run
linear function a function that graphs a line
parent function the simplest equation of a function
linear parent function y = x
linear equation an equation that models a linear function
y intercept the y coordinate of the point where a line crosses the y axis
slope intercept form y = mx + b
standard form of a linear equation Ax + By = C
x intercept the x coordinate of the point where the line crosses the x axis
point slope form y - y1 = m(x - x1)
parallel lines lines on the same plane that never intersect
perpendicular lines lines that intersect to form right angles
negative reciprocal the product of two numbers is -1
line of best fit a trend line that shows the relationship between two sets of data most accurately
correlation coefficient how closely the equation models that data
absolute value equation a v-shaped graph that points upward or downward
translation a shift of a graph horizontally, vertically, or both

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