Evaluating Functions Review

Front

What is function notation?

Back

Function notation is a way to represent a function using symbols. For example, f(x) represents a function named 'f' evaluated at 'x'.

Front

How do you evaluate a function at a specific value?

Back

To evaluate a function at a specific value, substitute the value into the function's equation. For example, to find f(2) in f(x) = 2x - 3, replace x with 2.

Front

What does f(-3) represent?

Back

f(-3) represents the value of the function f when the input is -3.

Front

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

Back

f(2) = 2(2) - 3 = 4 - 3 = 1.

Front

What does it mean to find f(x) = -5?

Back

Finding f(x) = -5 means determining the value of x for which the function f outputs -5.

Front

How do you write the equation y = 2x - 3 in function notation?

Back

In function notation, it is written as f(x) = 2x - 3.

Front

What is the output of f(2) if f(x) = 2x + 6?

Back

f(2) = 2(2) + 6 = 4 + 6 = 10.

Front

What is the domain of a function?

Back

The domain of a function is the set of all possible input values (x-values) for which the function is defined.

Front

What is the range of a function?

Back

The range of a function is the set of all possible output values (y-values) that the function can produce.

Front

What does it mean to evaluate f(x) at x = a?

Back

It means to substitute 'a' into the function f(x) and calculate the result.