FOM 1A: Evaluating Functions

Front

Evaluate f(x) = x + 5 when x = 3.

Back

8

Front

Evaluate g(x) = 7x when x = -5.

Back

-35

Front

Evaluate y(x) = 4x - 1 when x = 10.

Back

39

Front

What is a function?

Back

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

Front

What does it mean to evaluate a function?

Back

To evaluate a function means to find the output value for a given input.

Front

What is the domain of a function?

Back

The domain is the set of all possible input values (x-values) for the function.

Front

What is the range of a function?

Back

The range is the set of all possible output values (y-values) for the function.

Front

What is a linear function?

Back

A linear function is a function that graphs to a straight line and can be expressed in the form f(x) = mx + b.

Front

What is the slope of a line?

Back

The slope is a measure of the steepness of a line, calculated as the change in y over the change in x.

Front

What is the y-intercept of a function?

Back

The y-intercept is the point where the graph of the function crosses the y-axis.