Evaluating Functions

Front

What is a function?

Back

A function is a relation between a set of inputs and a set of possible outputs where each input is related to exactly one output.

Front

What does f(x) represent in a function?

Back

f(x) represents the output of the function f for a given input x.

Front

How do you evaluate a function at a specific point?

Back

To evaluate a function at a specific point, substitute the value of the variable into the function's equation.

Front

What is the value of f(4) if f(x) = 4x + 5?

Back

f(4) = 4(4) + 5 = 21.

Front

What is the value of f(10) if f(x) = 3x + 9?

Back

f(10) = 3(10) + 9 = 39.

Front

How do you find the value of r(-2) if r(x) = 2x + 4?

Back

r(-2) = 2(-2) + 4 = 0.

Front

What is the value of g(5) if g(x) = x - 1?

Back

g(5) = 5 - 1 = 4.

Front

How do you find f(-4) if f(x) = 3x + 9?

Back

f(-4) = 3(-4) + 9 = -12.

Front

What is the domain of a function?

Back

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

Front

What is the range of a function?

Back

The range of a function is the set of all possible output values (y-values) that the function can produce.