Function Notation

Math ⇒ Functions

Function Notation starts at 9 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Function Notation. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.

See sample questions for grade 9

What does the notation f(x) represent in mathematics?

Which of the following best describes function notation? (1) A way to write equations (2) A way to represent the output of a function for a given input (3) A way to solve equations (4) A way to graph functions

Which of the following is a function notation for "the cube of x plus 1"? (1) f(x) = x³ + 1 (2) f(x) = 3x + 1 (3) f(x) = x + 1 (4) f(x) = x³ - 1

Which of the following is NOT a correct function notation? (1) f(x) = x + 2 (2) y = 2x (3) f = x + 2 (4) g(x) = x²

Which of the following is the correct function notation for "double the input and subtract 4"? (1) f(x) = 2x + 4 (2) f(x) = 2x - 4 (3) f(x) = x/2 - 4 (4) f(x) = x - 4

Fill in the blank: If f(x) = 10 - x, then f(7) = _______.

Fill in the blank: If f(x) = 2x + 3, then f(0) = _______.

Fill in the blank: If f(x) = 3x, then f(2) = _______.

Fill in the blank: If f(x) = x - 4, then f(10) = _______.

True or False: f(x) = y is another way to write y as a function of x.

True or False: In function notation, f(x) and y can represent the same value.

True or False: In function notation, the letter inside the parentheses can be any variable, not just x.

True or False: In the function notation f(x), x is called the independent variable.