Find the Function

Find the function rule.

• y = -2x +10

• y = -2x -10

• y = 2x +10

• y = 2x-10

What is the equation?

• y = -2x + 8

• y = 8x + 2

• y= 2/8x + 3

• y = 0

What is the equation?

• y=2x + 8

• 2x + 8

• y = 8x + 2

• y = 4x + 8

What is the equation?

• y = 4x + 3

• y = 3x + 4

• y = 4/3x + 7

• y = 4x + 7

Function or not? (a)  

Domain =​ (b)  

Range =​ (c)  

• Function

• Not a Function

• {-5, -2,  2}

• {-4, 1. 3}

Answer explanation

The relation is not a function because it assigns multiple outputs to at least one input. The domain is {-5, -2, 2} and the range is {-4, 1, 3}, confirming the correct choices.

Function or not? (a)  

Domain =​ (b)  

Range =​ (c)  

• Function

• Not a Function

• {-5, -2,  2}

• {-4, 1. 3}

Answer explanation

The relation is not a function because it assigns multiple outputs to at least one input. The domain is {-5, -2, 2} and the range is {-4, 1, 3}, confirming the correct choices.

The output is four times the input.

• y = x/4

• 4x

• y = 4x

• y = x +4

Find the function rule.

• y = 2x

• y = 2x+3

• y = 3x+3

• y = -2x+3

Which equation matches the table?

• y = x 

• y = 5x

• y = x - 4

• y = x + 4

What is the equation?

• y = 5/3x +7

• y = 7x + 3

• y = 3x + 2

• y = 5x + 7