Linear Functions Review Quiz

• f(-2) = -1

• f(-2) = -9

• f(-2) = 9

• f(-2) = 0

Evaluate r(3)

• r(3) = 16

• r(3) = 12

• r(3) = 13

• r(3) = 0

Evaluate f(x) = x² for f(-8)

• 64
• -64
• -16
• 16

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

• y = 2x-3

• f = 2x - 3

• f(x) = 2x-3

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

• Let x = 2

• Let y = 2

If f(x) = 2x + 1, what would be your first step to find f(1)?

• Plug a 1 in for all the x's

• Set the function equal to 1

• Only plug a 1 into the left side

• Only plug a 1 into the right side

Evaluate f(-2) if f(x) = x + 3

• -1
• 1
• 5
• -5

Write the equation.

• f(x) = -5x + 1
• f(x) = x + 5
• f(x) = -2x
• f(x) = -5x + 6

Write the equation.

• f(x) = 3x - 7
• f(x) = 3x - 1
• f(x) = 3x - 4
• f(x) = 2x + 3

What is the equation for this table?

• y = -2x + 5
• y = 2x + 5
• y = 5x - 2
• y = 5x + 5