Evaluating Function Notation and Outputs

This video tutorial from Mumu Math and Science introduces function notation, explaining it as a concise way to write functions. It breaks down the components of function notation, such as the function name and input value, and demonstrates how to evaluate functions by substituting values into the input. The tutorial also covers evaluating more complex expressions using distribution and combining like terms. The video concludes with a summary of the key points discussed.

What is the primary purpose of function notation?

• To provide a shortened way to write functions

• To eliminate the need for variables

• To make functions longer

• To confuse students

In the function notation F(x) = 4x + 5, what does 'F' represent?

• The output value

• The input value

• A constant

• The name of the function

How should F(x) be read?

• F times X

• F of X

• F plus X

• F divided by X

What is the output of the function F(x) = 4x + 5 when x = 2?

• 14

• 13

• 12

• 11

What is the first step in evaluating a function?

• Dividing the input value

• Adding the input value

• Multiplying the input value

• Substituting the input value into the function

When evaluating F(-4r + 3m) = 4(-4r + 3m) + 5, what is the result after distributing?

• -16r + 12m + 2r

• -20r + 15m + 2r

• -16r + 12m + 5

• -20r + 15m + 5

After combining like terms, what is the final result of F(-4r + 3m)?

• 18r + 15m

• 20r + 15m

• 20r + 12m

• 18r + 12m