1.2.5 Algebra 1 Lesson

1.2.5 Domain and Range

​Objective:

Students will be able to describe the domain and range of a relation by examining an equation or graph. 

Multiple Choice

Estimate y when x = -4

• -3.7

• -5.2

• 0

• -2

Multiple Select

Estimate y when x = 1

***Select all that apply***

• 2

• 0

• -3

• 1

Multiple Select

Estimate y when x = 4

***Select all that apply***

• 0

• -2.3

• 3.3

• 5

Multiple Choice

Is this a function?

• Yes

• No

Fill in the Blanks

$f\left(x\right)=\frac{8}{x-3}$  

Find f(1)

Open Ended

$$f\left(x\right)=\frac{8}{x-3}$$  

Find f(3) and describe the possible inputs for this function.

​Domain: Possible inputs (x-values)

Multiple Choice

Which of the following functions has a restricted domain?

• $$y=x^2$$  

• $$y=\sqrt[]{x}$$  

• $$y=\left|x\right|$$  

• y = x

​Range: Possible outputs (y-values)

Multiple Select

Which of the following functions has a restricted range?

***Select all that apply***

• $$y=x^2$$  

• $$y=\sqrt[]{x}$$  

• $$y=\left|x\right|$$  

• y = x

Multiple Choice

What is the domain?

• $$-2\le x\le4$$  

• $$4\le x\le-2$$  

• $$-1\le x\le3$$  

• $$-2\ge x\le4$$  

Fill in the Blanks

What is the range?

use <= for less than or equal to

or >= for greater than or equal to

​Determine if each graph represents a function. Then describe the domain and range.

​​Determine if each graph represents a function. Then describe the domain and range.

​Answers to previous two slides

Open Ended