Identifying Functions from Graphs and Tables

This video tutorial explains how to identify functions in mathematics. It begins by defining a function as a special relationship where each input has a single output. The video introduces the vertical line test as a method to determine if a graph represents a function. It also covers how to identify functions using tables by ensuring each input has only one output. The tutorial concludes with a call to action to engage with more math content.

Where can you find the worksheet used in this lesson?

• On the blackboard

• In the comments section

• In the textbook

• In the video description

What is a function in mathematics?

• A relationship where each input has multiple outputs

• A relationship where each input has one and only one output

• A relationship where each output has multiple inputs

• A relationship where each output has one and only one input

Tags

CCSS.8.F.A.1

What is the vertical line test used for?

• To check if a graph represents a function

• To check if a graph is a circle

• To check if a graph is a straight line

• To check if a graph is a parabola

If a vertical line intersects a graph at more than one point, what does it indicate?

• The graph is a function

• The graph is a parabola

• The graph is not a function

• The graph is a straight line

In the vertical line test, what does it mean if the line intersects the graph only once?

• The graph is a parabola

• The graph is a circle

• The graph is not a function

• The graph is a function

In a table, what do the X values represent?

• Outputs

• Graphs

• Equations

• Inputs

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

In a table, what do the Y values represent?

• Outputs

• Inputs

• Equations

• Graphs

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

If an input in a table has multiple outputs, what does it indicate?

• It represents a straight line

• It represents a parabola

• It represents a function

• It does not represent a function

Tags

CCSS.8.F.A.1

In the example given, what are the outputs for the input of 3?

• 10, 15, 20, 25

• 0, 5, 10, 15

• 5, 10, 15, 20

• 1, 2, 3, 4

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What should you do if you found the video helpful?

• Dislike the video

• Ignore it

• Drop a like, subscribe, or check out the website

• Leave a comment

Tags

CCSS.RI.11-12.3

CCSS.RI.11-12.5

CCSS.RI.8.5

CCSS.RI.9-10.3

CCSS.RI.9-10.5