WARM UP

Solve for y

1.

2.

3.

ALGEBRA 3

CHAPTER 9: RATIONAL EQUATIONS AND

FUNCTIONSLESSON 2: GRAPHING

SIMPLE RATIONAL FUNCTIONS

VOCAB

Rational Function – is a function in the form • Basically any equation that says y = some fraction

(where x is in the denominator)

Hyperbola – The graph of a rational function (see the

board)

Branches – The 2 symmetrical parts of the graph

Asymptote - a line that the graph approaches as you

move away from the origin

KNOWLEDGE

Equation • Asymptotes @ y = k and x = h• REMEMBER • H moves opposite (left and right)• K moves same up and down• A – positive (1 and 3)• A – negative (2 and 4)

DIRECTIONS

Find your asymptotes• Draw dotted lines on the graph paper

Type the graph in the calculator

Draw it

Find Domain and Range

TODAY

Today we are going to look at the

graph of basic rational functions

Tomorrow we will look at a little

more complex graphs

I DO(GRAPHING BASIC)

Graph the rational function and state the domain and

range

1. 2.

3. 4.

WE DO(GRAPHING BASIC)

Graph the rational function and state the domain and

range

1. 2.

3. 4.

I DO(GRAPHING BASIC)

Graph the rational function and state the domain and

range

1. 2.

3. 4.

REVIEW

Today you learned how

to draw graphs of basic

rational functions

HOMEWORK

WORKSHEET

WARM UP

Graph the equation

1.

2.

3.

ALGEBRA 3

CHAPTER 9: RATIONAL EQUATIONS AND

FUNCTIONSLESSON 2: GRAPHING

SIMPLE RATIONAL FUNCTIONS

TODAY

Today we are going to continue to

look at the graph of basic rational

functions

Tomorrow we will look at a little

more complex graphs

WE DO(GRAPHING BASIC)

Graph the rational function and state the domain and

range

1. 2.

3. 4.

YOU DO(GRAPHING BASIC)

Graph the rational function and state the domain and

range

1. 2.

3. 4.

REVIEW

Today you learned how

to draw graphs of basic

rational functions

TOMORROW

Quiz on 9.1 and 9.2

HOMEWORK

WORKSHEET•9.2 (1, 4, 7 - 9)