Evaluating Functions

Front

What is a function in mathematics?

Back

A function is a relation that assigns exactly one output for each input from a set of inputs.

Front

What does it mean to evaluate a function?

Back

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

Front

Evaluate y = 2x + 4 when x = 2.

Back

8

Front

Evaluate y = x^2 - 1 when x = 5.

Back

24

Front

What is the output of the function f(x) = 3x when x = -1?

Back

-3

Front

Evaluate y = 4 - 3x when x = 1.

Back

1

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

Evaluate y = 5x + 2 when x = 0.

Back

2

Front

Evaluate y = -2x + 10 when x = 4.

Back

2