Linear And Quadratic Functions (Page 3 of 4) in pdf

Linear And Quadratic Functions Page 3

Section 3.3: Polynomial Inequalities in Two Variables

• Graph two or more inequalities and shade the intersection

Section 3.4: Linear Programming

• Look at you 3.4 notesheet, homework, and review sheets

Chapter 4: Functions

Section 4.1: Functions

• Domain (independent) and Range (dependent)

• Each x-value corresponds to exactly one y-value

• The Vertical Line Test

Section 4.2: Operations on Functions

• Sum, Difference, Product, and Quotient

• When taking the difference remember to distribute the negative sign through

• Composite Functions

f g x

( )

f g x

( ( ))

(

)

o DO NOT multiply by x

o The (x) is what to plug into the function

Section 4.3: Reflecting Graphs; Symmetry

• Reflection of the x-axis, y-axis, y = x line, and the origin

• Axis of symmetry and Point of Symmetry formulas

• Deciding if a graph is symmetric to the x-axis, y-axis, y = x line, and/or the origin

Section 4.4: Periodic Functions

• Fundamental period

• Amplitude formula

• Vertical stretch or shrink

• Horizontal stretch or shrink

Section 4.5: Inverse Functions

• Three steps to find the inverse

• Notation: the inverse of ( )

h x is

( )

−

• Horizontal Line Test

• One – to – one functions

Linear And Quadratic Functions Page 3