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
