Interpreting & Evaluating Function Notation

Front

What is function notation?

Back

Function notation is a way to represent a function using symbols. It typically uses letters like f, g, or h followed by parentheses containing the input value, e.g., f(x).

Front

How do you evaluate a function at a specific value?

Back

To evaluate a function at a specific value, substitute the input value into the function's expression and simplify.

Front

If h(a) = 3 - 2a, what is h(-3)?

Back

h(-3) = 3 - 2(-3) = 3 + 6 = 9.

Front

What is f(1) if f(x) = 5x?

Back

f(1) = 5(1) = 5.

Front

For the function f(x) = 3x - 8, what is f(6)?

Back

f(6) = 3(6) - 8 = 18 - 8 = 10.

Front

What is the output of f(x) = 2x + 3 when x = 4?

Back

f(4) = 2(4) + 3 = 8 + 3 = 11.

Front

What does it mean if a relation is not a function?

Back

A relation is not a function if at least one input is associated with more than one output.

Front

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

Back

f(-2) = (-2)^2 = 4.

Front

What is the value of f(0) for the function f(x) = 4x - 1?

Back

f(0) = 4(0) - 1 = -1.

Front

How do you find the value of a function at a given point?

Back

Substitute the given point into the function's equation and simplify to find the output.