Education Technology

# Activities

• ##### Subject Area

• Math: Math General: General
• Math: Algebra II: Inverses

9-12

60 Minutes

Derive™ 6

## MM CAS 2002 Exam 1 Part 1 : Sample Solutions Q8 - Q13

#### Activity Overview

This activity, which acts as a learning review, is a solution of the questions 8 - 13 of the MM CAS 2002 Exam 1 Part 1. Students use the Derive software to solve problems.

#### Before the Activity

See the attached PDF / DFW file for solutions to the questions, and print the file for the class.

#### During the Activity

Distribute the printed pages to the class.

In this activity, students will:

• Observe the first and second differences, and the rate of increase to rule out options from the given choices
• Use Derive to check the table of values for each alternative
• Understand the definition of inverse functions
• Realize that inverse functions are symmetrical about the line y = x
• Recognize the fact that for a function to have an inverse, the set A must be a subset of R such that the function has one-to-one correspondence over A
• #### After the Activity

Review student results:

• As a class, discuss questions that appeared to be more challenging
• Re-teach concepts as necessary