Pre/Post Test Functions Sec 1-3 - OakPark

Front

What does the function C(x) = 1/2x + 3 represent in the context of a snowstorm?

Back

C(x) represents the number of inches of snow on the ground x hours after the snowstorm starts.

Front

Interpret C(8) = 7 in the context of the snowstorm.

Back

There is 7 inches of snow after 8 hours.

Front

Evaluate f(x) = 2x + 1 when x = 6.

Back

f(6) = 13.

Front

What is the domain of a relation?

Back

The domain is the set of all x-values.

Front

For h(x) = 15x, find the value of x for which h(x) = 90.

Back

x = 6.

Front

What is the range of a function?

Back

The range is the set of all y-values or outputs.

Front

What is a function?

Back

A function is a relation that assigns exactly one output for each input.

Front

What is the difference between domain and range?

Back

Domain refers to the set of all x-values, while range refers to the set of all y-values.

Front

If f(x) = 3x + 2, what is f(4)?

Back

f(4) = 14.

Front

What does it mean for a function to be linear?

Back

A linear function has a constant rate of change and can be represented by a straight line on a graph.