What is a function?

What does a function do with an input?

• It produces a random output.

• It ignores the input.

• It always produces the same output.

• It processes the input to produce a specific output.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

If a function f(x) is defined as f(x) = x^2 for even x and f(x) = x + 5 for odd x, what is f(3)?

• 3

• 9

• 8

• 6

Tags

CCSS.HSF.IF.A.2

In the function h(a) defined as the next largest number starting with the same letter as a, what is h(8)?

• 12

• 10

• 9

• 11

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

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

• A relationship where one input can have multiple outputs.

• A relationship where inputs are ignored.

• A relationship where outputs are random.

• A relationship where each input has exactly one output.

Tags

CCSS.8.F.A.1

Why is the relationship defined by the equation x^2 + y^2 = 4 not a function?

• Because it is not an equation.

• Because it is a circle.

• Because it has no inputs.

• Because one input can have multiple outputs.