Week 11_Thu SOL 7 Functions

The ordered pairs in the sets shown below are of the form (x, y ). In which set of ordered pairs is y  a function of x ?

• { (0, 1), (1, -1), (1, 0) }

• { (0, -5), (0, 4), (0, 5) }

• { (-3, 4), (1, -9), (1, 4) }

• { (1, -1), (2, -1), (3, -3) }

Choose the correct answer.

• Option A

• Option B

• Option C

• Option D

Choose the correct answer.

• Option A

• Option B

• Option C

• Option D

The following equation defines a function of x.

                    f (x ) = -2x  + 3

If (6, n ) is an element of the function, what is the value of n ?

• 0

• -6

• -4

• -9

If ƒ(2) = 13, which could be the equation for ƒ(x) ?

• ƒ(x) = x + x ²

• ƒ(x) = x ² + 8

• 
  ƒ(x) = 3x ² + 1

• ƒ(x) = 2x ³ + 5

Find the zero(s) of the function.

• x = -3
• x = 1
• x = {-3, 1}
• y = 1

Find the zero(s) of the function.

• x = 1
• x = -3
• x = {-1, 3}
• x = 2

Find the zero(s) of the function.

• x = -3
• x = 3
• x = -12
• x = 12

Find the zero(s) of the function.

• x = {-4, 4}
• x = -4
• x = 4
• x = 0

What is the y-intercept shown on the graph?

• (0, -2)
• (4, -2)
• (4, 0)
• (0, 4)