Introduction to Functions

A quantity that has the same value throughout a set of mathematical operations is called:

In the equation x² + y² = r², which of the following is a constant?

If y² + x² = 9, and we write y = √(9 − x²), then:

Which of the following is the correct definition of a function?

In function notation f: A → B, the set B is called:

The set of all images of the domain elements under a function is called:

Which of the following is an example of a function?

Which of the following is the domain in the function f: A → B?

Which of the following is always true about the Range and Co-domain of a function?

For two functions f and g defined on domain D, (f + g)(x) equals:

For two functions f and g on domain D, (f × g)(x) is defined as:

Which of the following is NOT always defined for all x in domain D?

If f and g are functions on D, then (f ÷ g)(x) is valid only when:

The graphs of functions can be used to:

Which of the following best represents a dependent variable?