Understanding Functions in Algebra

Front

What is a function in mathematics?

Back

A rule that relates one set to another in a specific way.

Front

What is the domain of a function?

Back

The set of input values.

Front

What does the range of a function represent?

Back

The possible values of 'y'.

Front

What does the function y = 2x imply about the relationship between 'y' and 'x'?

Back

For each input 'x', 'y' is twice as big.

Front

Why is 'y squared equals x' not considered a function?

Back

Because it can produce more than one output for a single input.

Front

What is the Vertical Line Test used for?

Back

To determine if a graph represents a function.

Front

Which of the following is an example of a linear function? y = 2^x, y = x + 1, y = x^2, y = 1/x

Back

y = x + 1

Front

What does it mean if a function passes the Vertical Line Test?

Back

It is a function.

Front

How is function notation commonly written? Options: f(y) = x, f(x) = y, y = f(x), x = f(y)

Back

f(x) = y

Front

What is the result of evaluating f(4) if f(x) = 3x + 2?

Back

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