Evaluate Functions

Front

If a question asks you to find f(2), what does that mean?

Back

Let x = 2

Front

For what value of x does f(x) = -2?

Back

-5

Front

What is f(6) for the function f(x)=3x-8?

Back

10

Front

What is the value of f(-5)?

Back

-2

Front

If f(x) = 2x+1, what would the function look like once you substitute in a 1 to find f(1)?

Back

f(1) = 2 (1) + 1

Front

What is the definition of 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 output of f(x) = x^2 when x = 3?

Back

9

Front

How do you find f(a) for a function f(x)?

Back

Substitute a into the function in place of x.

Front

What is the value of f(0) for f(x) = 5x - 3?

Back

-3