Unit 2 Test Review

Front

What is the value of g(0) if g(x) = 2x + 5?

Back

g(0) = 5.

Front

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

Back

A relation is a function if every x value has exactly one y value.

Front

How do you determine the domain of a function from its graph?

Back

The domain is the set of all possible x values for which the function is defined.

Front

How do you determine the range of a function from its graph?

Back

The range is the set of all possible y values that the function can output.

Front

Evaluate g(-2) if g(x) = 2x + 5.

Back

g(-2) = 1.

Front

What is the domain of the function if the graph shows x > 3?

Back

The domain is x > 3.

Front

What is the range of the function if the graph shows y > 4?

Back

The range is y > 4.

Front

What is the output of a function?

Back

The output of a function is the value of y for a given x.

Front

What is the difference between a relation and a function?

Back

A relation can have multiple y values for a single x value, while a function cannot.

Front

If f(9) = 8, what does this indicate about the function f?

Back

It indicates that when x = 9, the output y is 8.