4.1 Quizizz Function Notation Practice

f(x) is the same thing as ______.

• y
• x
• input
• an equation

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

• Let x = 2

  is the input

• Let y = 2

  is the output

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

• y = 2x-3

• f = 2x - 3

• f(x) = 2x-3

What is f(4)?

• 1

• 2

• 3

• 4

Answer explanation

f(4) = 4

What is f(1)?

• 1

• 2

• 3

• 4

Answer explanation

f(1) = 2

What is f(0)?

• 0

• 1

• 2

• 3

Answer explanation

f(0) = 0

What is f(7)?

• 0

• 1

• 2

• 3

Answer explanation

f(7) = 0

Where is the ⭑?

• f(5) = 4

• f(2) = 6

• f(6) = 2

• f(7) = 0

• 2 is the input

• there is no input

• 5 is the input

• 2 is the same as 5 and are both inputs

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

• After 5 week the plant is 4 inches tall
• After 4 weeks the plant is 5 inches tall