Function Notation

Front

How would you write y = 2x - 3 in function notation?

Back

f(x) = 2x - 3

Front

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

Back

Let x = 2

Front

If f(x) = 2x + 1, find f(1).

Back

f(1) = 3

Front

The function h(t) represents the height in inches of a plant after t weeks. What does the notation h(4) = 5 mean?

Back

After 4 weeks the plant is 5 inches tall.

Front

What is f(8) if f(x) = 2x - 10?

Back

f(8) = -2.

Front

What is the definition of function notation?

Back

Function notation is a way to represent a function using symbols, typically f(x), where f is the function name and x is the input variable.

Front

What does f(x) = 3x + 2 represent?

Back

It represents a linear function where the output is determined by multiplying the input x by 3 and then adding 2.

Front

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

Back

f(3) = 9.

Front

What does it mean if f(a) = b?

Back

It means that when the input is a, the output of the function f is b.

Front

How do you evaluate a function at a specific point?

Back

Substitute the specific value into the function's equation.