Ch 1 Flashcards
Set
A collection of objects
Subset
Natural numbers or real numbers
Endpoints
Two numbers or letters on a point of a line
Bounded interval
Line between the two endpoints
Unbounded interval
An interval (line) that doesn’t have endpoints
Set builder notation
Uses symbols to define a set in terms of the properties the members of a set
Absolute value function
|x| expression
Parent function
Most basic function in a family of functions
Transformation
Change in size shape position or orientation of a graph
Translation
Shifts a graph horizontally and vertically but doesn’t change size shape or form
Reflection
Flips a graph over the x-axis or y-axis
Vertical stretch
Causes the graph of a function to stretch away from the x-axis when the y-coordinates are multiplied by a factor where a>1
Vertical shrink
Graph shrinks toward from the x-axis when the y-coordinates are multiplied by factor A 0<a></a>
Absolute value equation
Contains and absolute value expression y=
Extraneous solution
Apparent solution that must be rejected because it doesn’t satisfy the original equation
Absolute value inequality
Contains an absolute value expression
Absolute deviation
Absolute value of the difference of a number X and a given value
Line of fit
Line that models data in a scatter plot
Line of best fit
Line that lies as close as possible to all of the data points in a scatter plot
Correlation coefficient
Number R from -1 to 1 that measures how well a line fits a set of data
