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Algebra 1 Unit 2 Day 2 DP Functions Day 2.notebook October 17, 2017
DO NOW
Algebra 1 10/17/17Aim: What Other Methods Can We Use to Determine if a
Relation is a Function?HW: Identifying Functions Day 2 Worksheet
Below you will find four different relations. Choose which one is not a function and write a statement supporting/explaining your choice.
A) {(0,3), (2,6), (4, 8)}
B) {(1,1), (2,1), (3, 1)}
C) {(1,1), (2,2), (3, 3)}
D) {(1,1), (1,2), (1, 3)}
Algebra 1 Unit 2 Day 2 DP Functions Day 2.notebook October 17, 2017
Aim: What Other Methods Can We Use to Determine if a Relation is a Function?HW: Identifying Functions Day 2 Worksheet
Let's Take a Closer Look at the "Do Now"...
Plot the points of each relation in the "Do Now" on its own coordinate plane. Record what you notice is special about the one that is not a function.
A) {(0,3), (2,6), (4, 8)} B) {(1,1), (2,1), (3, 1)} C) {(1,1), (2,2), (3, 3)} D) {(1,1), (1,2), (1, 3)}
Algebra 1 Unit 2 Day 2 DP Functions Day 2.notebook October 17, 2017
Aim: What Other Methods Can We Use to Determine if a Relation is a Function?HW: Identifying Functions Day 2 Worksheet
Let's Take a Closer Look at the "Do Now"...
Plot the points of each relation in the "Do Now" on its own coordinate plane. Record what you notice is special about the one that is not a function.
A) {(0,3), (2,6), (4, 8)} B) {(1,1), (2,1), (3, 1)} C) {(1,1), (2,2), (3, 3)} D) {(1,1), (1,2), (1, 3)}
What do you notice about the points in the one that is not a function?
Algebra 1 Unit 2 Day 2 DP Functions Day 2.notebook October 17, 2017
The Vertical Line Test
Each input (xvalue) can be though of as a vertical line.
1 2 3 4 5 6 7 9 1010 9 8 7 6 5 4 2 131
2
3
4
5
6
7
8
9
10
12345678
10
9
x
y
8
x = 5(5,9)
(5,4)
(5,0)
(5,4)
(5,8)
Aim: What Other Methods Can We Use to Determine if a Relation is a Function?HW: Identifying Functions Day 2 Worksheet
Algebra 1 Unit 2 Day 2 DP Functions Day 2.notebook October 17, 2017
is it a function?
Function
Relation
Map Diagram Vertical Line Test
Output
RangeDomain
Input
A relation where each input (domain) has exactly one output (range)
The set of all xvalues (inputs) of a relation The set of yvalues
(outputs) of a relation
A set of ordered pairs
A diagram that connects each member of the domain to the member of the range
1
0
2
11
If vertical lines hit ONLY one point on the graph of a relation, then it is a function
Graphic OrganizerAlert!
Aim: What Other Methods Can We Use to Determine if a Relation is a Function?HW: Identifying Functions Day 2 Worksheet
Algebra 1 Unit 2 Day 2 DP Functions Day 2.notebook October 17, 2017
Discuss with Your Neighbor(s)
Aim: What Other Methods Can We Use to Determine if a Relation is a Function?HW: Identifying Functions Day 2 Worksheet
Algebra 1 Unit 2 Day 2 DP Functions Day 2.notebook October 17, 2017
What About This Example?
Aim: What Other Methods Can We Use to Determine if a Relation is a Function?HW: Identifying Functions Day 2 Worksheet
Algebra 1 Unit 2 Day 2 DP Functions Day 2.notebook October 17, 2017
How can we visually determine whether or not a graph is a function? Why does this method work?
Aim: What Other Methods Can We Use to Determine if a Relation is a Function?HW: Identifying Functions Day 2 Worksheet
Algebra 1 Unit 2 Day 2 DP Functions Day 2.notebook October 17, 2017
Start on Your Own Finish with a Partner
Assess as You Work
1
2
3
I got it!
I don't get it
I'm not sure
Aim: What Other Methods Can We Use to Determine if a Relation is a Function?HW: Identifying Functions Day 2 Worksheet
Is It a Function? Worksheet
Algebra 1 Unit 2 Day 2 DP Functions Day 2.notebook October 17, 2017
Aim: What Other Methods Can We Use to Determine if a Relation is a Function?HW: Identifying Functions Day 2 Worksheet
Algebra 1 Unit 2 Day 2 DP Functions Day 2.notebook October 17, 2017
Aim: What Other Methods Can We Use to Determine if a Relation is a Function?HW: Identifying Functions Day 2 Worksheet
Algebra 1 Unit 2 Day 2 DP Functions Day 2.notebook October 17, 2017Aim: What Other Methods Can We Use to Determine if a Relation is a Function?HW: Identifying Functions Day 2 Worksheet
3)
Algebra 1 Unit 2 Day 2 DP Functions Day 2.notebook October 17, 2017
Exit Slip
Aim: What Other Methods Can We Use to Determine if a Relation is a Function?HW: Identifying Functions Day 2 Worksheet
Algebra 1 Unit 2 Day 2 DP Functions Day 2.notebook October 17, 2017
Get a head start on your Homework!!!
mathsims.wordpress.comLesson Slides, Resources and More!
Aim: What Other Methods Can We Use to Determine if a Relation is a Function?HW: Identifying Functions Day 2 Worksheet