How to apply the compostion of two functions

The video tutorial explains the concept of function composition using G of F, represented as G of F of X. The instructor uses a mnemonic involving the word 'golf' to help remember the concept. The tutorial demonstrates how to plug the F of X function into the G of X function, using examples to illustrate the process. It emphasizes understanding inputs in functions and concludes with a final explanation of the concept.

What mnemonic does the instructor use to remember the concept of G of F?

• Giraffe

• Fog

• Golf

• Gulf

What is the result of G of 3 if G of X equals negative X plus 1?

• Negative 4

• 2

• 4

• Negative 2

What does the instructor say about plugging different inputs into a function?

• The input should be a constant.

• The input must be a letter.

• The input can be any expression or value.

• The input must always be a number.

What is the expression for G of F of X if F of X is X squared?

• X squared minus 1

• Negative X squared plus 1

• X plus 1

• Negative X plus 1

How does the instructor describe the process of substituting F of X into G of X?

• As a simple addition

• As a complex multiplication

• As plugging one function into another

• As a subtraction operation