Function Notation Practice

Front

What is function notation?

Back

Function notation is a way to represent a function using symbols. It typically uses the letter 'f' followed by the input variable in parentheses, such as f(x).

Front

If f(x) = 2x + 1, what is f(1)?

Back

f(1) = 3

Front

If f(x) = -3x - 8, what is f(-1)?

Back

f(-1) = -5

Front

What does it mean for a relation to be a function?

Back

A relation is a function if each input (x-value) has exactly one output (y-value).

Front

If h(x) = 3 - \frac{1}{2}x, what is h(-4)?

Back

h(-4) = 5

Front

What is the output of f(x) when f(x) = 2x + 1 and x = 2?

Back

f(2) = 5

Front

What is the output of f(x) when f(x) = -3x - 8 and x = 0?

Back

f(0) = -8

Front

How do you determine if a table represents a function?

Back

Check if any x-value is repeated; if it is, the relation is not a function.

Front

If f(1) = 5, what is the value of f(1)?

Back

f(1) = 5

Front

What is the value of f(x) if f(x) = 4x and x = 3?

Back

f(3) = 12