Evaluating Functions

Front

What is a function?

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 find the output value when a specific input is substituted into the function.

Front

Evaluate f(x) = 2x + 1 for f(4).

Back

9

Front

Evaluate f(x) = -3(x-1) for f(0).

Back

3

Front

Evaluate f(x) = x/3 for f(33).

Back

11

Front

Evaluate f(x) = x^2 - 4 for f(-3).

Back

5

Front

Evaluate f(x) = 2x + 10 for f(5).

Back

20

Front

What is the output of f(x) = x + 2 when x = -1?

Back

1

Front

If f(x) = 3x - 5, what is f(2)?

Back

1

Front

What is the domain of the function f(x) = 1/(x-2)?

Back

All real numbers except x = 2.