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Chapter 4 Vocabulary
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Terms in this set (12)
perpendicular lines
two lines whose slopes are negative reciprocals of each other
bivariate data
data with two variables
parallel lines
two lines that have the same slope
rate of change
measures how a quantity changes with respect to a change in another quantity, also known as slope
linear regression
an algorithm to find a precise line of fit for a set of data
correlation coefficient
the number that describes how closely a best-fit line models a set of data
best-fit line
the line that most closely approximates the data in a scatter plot
linear extrapolation
the use of a linear equation to predict values that are outside the range of data
line of fit
a line that describes the trend of the data in a scatter plot
point-slope form
an equation of the form y-y1=m(x-x1), where m is the slope and (x1,y1) is a given point on a non-vertical line
scatter plot
shows the relationship between a set of data with two variables, graphed as ordered pairs on a coordinate plane
slope-intercept form
an equation of the form y=mx+b, where m is the slope and b is the y-intercept
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