Domain & Range of Linear Functions

Front

What is the domain of a function?

Back

The set of all possible input values (x-values) for a function.

Front

What is the range of a function?

Back

The set of all possible output values (y-values) for a function.

Front

In the relation (x, y), what do the x values represent?

Back

The domain.

Front

In the relation (x, y), what do the y values represent?

Back

The range.

Front

If a graph shows x values from -3 to 2, what is the domain?

Back

-3 ≤ x ≤ 2.

Front

If a graph shows y values from 0 to 5, what is the range?

Back

0 ≤ y ≤ 5.

Front

What does it mean if a function is defined for all real numbers?

Back

The domain is all real numbers (-∞, ∞).

Front

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

Back

Identify the x-values that the graph covers from left to right.

Front

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

Back

Identify the y-values that the graph covers from bottom to top.

Front

What is the domain of the function f(x) = 2x + 3?

Back

All real numbers.