Function Composition

What does 'F of G of X' mean in function composition?

• A function added to another function

• A function multiplied by another function

• A function within another function

• A function subtracted from another function

What is the input when inserting 'sqrt(X - 3)' into a function?

• A number

• A variable

• A whole function

• An expression

What must the input be greater than or equal to in the domain discussed?

• 4

• 5

• 3

• 2

What is the domain of the function discussed?

• 3 to Infinity

• 2 to Infinity

• 1 to Infinity

• 0 to Infinity

Why can't the input be equal to 3 in the domain?

• Because it is exactly 3

• Because it is greater than 3

• Because it is not defined at 3

• Because it is less than 3