Function Notation

Front

What is function notation?

Back

Function notation is a way to represent a function using symbols, typically written as f(x), where 'f' is the name of the function and 'x' is the input variable.

Front

If f(x) = 19, what does this mean?

Back

This means that for the input value of x, the output of the function f is 19.

Front

How do you find f(-1) if f(x) is defined?

Back

To find f(-1), substitute -1 into the function in place of x and simplify.

Front

What is the first step to evaluate f(1) if f(x) = 2x + 1?

Back

The first step is to plug a 1 in for all the x's in the function.

Front

If f(2) = 4, how can this be represented as an ordered pair?

Back

This can be represented as the ordered pair (2, 4).

Front

What does it mean if f(x) = 2x + 1?

Back

It means that the output of the function f is equal to two times the input x plus one.

Front

How do you evaluate a function at a specific point?

Back

To evaluate a function at a specific point, substitute the value of the point into the function's equation.

Front

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

Back

The output is f(2) = 2(2) + 1 = 5.

Front

What is the significance of the variable x in function notation?

Back

The variable x represents the input value for which the function is being evaluated.

Front

What does it mean if f(x) = 0?

Back

It means that the output of the function f is zero for the given input x.