U8B Correction Session

Unit 8 Correction Session
Join with Your name as it appears in class
***Can't recognize your name -> No points

By the end we will be able to...

• Identify functions

• Use the vertical line test

• Graph linear function

• Construct linear function by identifying slope (rate of change) and the y-intercept (initial value).

Relation: A group of ordered pairs.

Function: A relation where each x gets only one y.

​

identify functions

​Example of a Function

​Non-example of a Function

Multiple Choice

Which of the following diagrams shows a function?

Vertical Line Test: A test we can use to test if a graph represents a function.

* If a vertical line crosses the graph more than once at any point, then it is not a function

​

​graphs of functions

​Example for a function:
https://www.geogebra.org/calculator/xswdgsbk


Non-example for a function:
https://www.geogebra.org/calculator/zwyyvtn7

Multiple Choice

Does this graph pass or fail the vertical line test? In other words, does the graph represent a function?

• This graph passes the VLT, so it is a function.

• This graph doesn't pass the VLT, so it's not a function.

​graphing a function

Draw

Graph the function: $$y=2x-6$$

1. Find rate of change

2. Find initial value

​

​construct a function

Draw

Construct a function for the relationship shown in the table.

the end
we ...

• Identified functions

• Used the vertical line test

• Graphed linear function

• Constructed linear function by identifying slope (rate of change) and the y-intercept (initial value).