Exploring Function Concepts and Definitions

The video tutorial provides a comprehensive review of functions, focusing on four different representations: tables, ordered pairs, mapping, and graphing. It emphasizes the importance of not repeating x-values to maintain a functional relationship. The tutorial explains how to identify functions using tables, ordered pairs, and mapping, and introduces the vertical line test for graphing. The video concludes with additional resources for further learning.

What is a key characteristic of a function in a table representation?

• Non-repeating y-values

• Non-repeating x-values

• Repeating x-values

• Repeating y-values

Tags

CCSS.8.F.A.1

Why is it important that x-values do not repeat in a function?

• It allows for multiple y-values for each x-value

• It ensures each x-value has a unique y-value

• It ensures each y-value has a unique x-value

• It allows for multiple x-values for each y-value

Tags

CCSS.8.F.A.1

In ordered pairs, which values are we concerned with to determine if it is a function?

• Only x-values

• Both x and y-values

• Neither x nor y-values

• Only y-values

Tags

CCSS.8.F.A.1

What makes an ordered pair representation a function?

• Non-repeating x-values

• Non-repeating y-values

• Repeating y-values

• Repeating x-values

Tags

CCSS.8.F.A.1

In mapping, what indicates that a representation is not a function?

• Multiple lines from a single x-value

• Multiple lines from a single y-value

• Single line from each x-value

• Single line from each y-value

Tags

CCSS.8.F.A.1

What is the main difference between a table and a mapping representation?

• Tables use ovals, mapping uses boxes

• Tables use dots, mapping uses lines

• Tables use boxes, mapping uses ovals

• Tables use lines, mapping uses dots

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What does the vertical line test determine?

• If a graph is quadratic

• If a graph is linear

• If a graph is a function

• If a graph is exponential

What happens if a vertical line intersects a graph at more than one point?

• The graph is linear

• The graph is not a function

• The graph is quadratic

• The graph is a function

What should you do to ensure a graph passes the vertical line test?

• Draw multiple horizontal lines

• Draw one horizontal line

• Draw multiple vertical lines

• Draw one vertical line

Where can you find additional resources on functions and non-functions?

• In the textbook

• By reaching out to your teacher

• In the video description

• On the school website

Tags

CCSS.8.F.A.1