# Shared Flashcard Set

## Details

Unit 6
Slope and Graphing
15
Mathematics
02/10/2009

Term
 Constant Function
Definition
 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.
Term
 Correlation
Definition
 the description of the relationship between two data
Term
 Function
Definition
 a relation (set of ordered pairs) such that each x value is associated with only one y value.
Term
 Line of best fit
Definition
 the line that best represents the trend established by the points in a particular scatter plot.
Term
 Scatter Plot
Definition
 the graph of a collection of ordered pairs.
Term
 Slope
Definition
 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.
Term
 Slope-intercept form
Definition
 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.
Term
 x-intercept
Definition
 the point where a line crosses the x-axis
Term
 y-intercept
Definition
 the point where a line crosses the y-axis
Term
 Standard Form
Definition
 a way to write the equation of a line Ax + By = C where A, B, and C are all integers
Term
 Horizontal Line
Definition
 a horizontal line is written in the form y = b and has a slope of zero
Term
 Vertical Line
Definition
 a vertical line is written in the form x=a and has a slope of undefined
Term
 Slope Formula
Definition
 y2- y1x2 - x1
Term
 Point Slope Form
Definition
 y - y1 = m(x - x1)
Term
 Arithmetic sequence
Definition
 a sequence of numbers in which the difference between any two consecutive terms is the same.
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