Functions Basics (Input and Output)

Front

What is a function in mathematics?

Back

A function is a rule that predictably takes an input and gives one output every time.

Front

What is an example of a mathematical rule?

Back

Add by 8 then Multiply by 3.

Front

If a function multiplies the input by 2, what is the input if the output is 8?

Back

4.

Front

What is the output of the function f(x) = x + 5 when the input is 3?

Back

8.

Front

What is the output of the function f(x) = 3x when the input is 4?

Back

12.

Front

What is the rule for Derman's function: multiply by 16, add 32, divide by 8, and subtract 4?

Back

Multiply by 2.

Front

What is the output of the function f(x) = x - 2 when the input is 10?

Back

8.

Front

What is the best definition of a function?

Back

A rule that takes inputs and gives outputs based on that rule.

Front

If the function is defined as f(x) = 2x + 1, what is f(3)?

Back

7.

Front

What is the output of the function f(x) = x^2 when the input is 5?

Back

25.