Evaluating Functions and Function Notation

Front

What is function notation?

Back

The way an equation (function) is written.

Front

How do you read f(x)?

Back

f of x

Front

If a question asks you to find f(2), what does that mean?

Back

Let x = 2

Front

If I know that f(2) = 4, what is another way I can write my answer?

Back

(2, 4)

Front

The function c(m) = 1.45m + 3.50 represents the cost of a taxi for m miles. What does c(7) represent?

Back

The cost to ride 7 miles.

Front

What does the notation f(x) represent in a function?

Back

f(x) represents the output of the function f for the input x.

Front

What is the domain of a function?

Back

The set of all possible input values (x-values) for the function.

Front

What is the range of a function?

Back

The set of all possible output values (y-values) for the function.

Front

If f(x) = 3x + 2, what is f(1)?

Back

f(1) = 3(1) + 2 = 5.

Front

What does it mean if f(a) = b?

Back

It means that when the input is a, the output is b.