Understanding Linear Functions and Models

Front

What is a function?

Back

A rule that assigns to each input exactly one output.

Front

Calculate f(2) if f(x) = 5x - 3.

Back

7

Front

Back

-3

Front

Which of the following graphs represents a function? A vertical line, a horizontal line, a circle, or a parabola opening upwards?

Back

A horizontal line.

Front

Back

All real numbers.

Front

Back

m (the coefficient of x).

Front

What does the y-intercept represent in a linear function?

Back

The value of y when x = 0.

Front

If a function is represented by a table of values, what must each input have?

Back

Exactly one output.

Front

What is the domain of a function?

Back

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

Front

What is a linear function?

Back

A function that graphs to a straight line.