Know It All Friday - 8th Math - 1/27

What is the definition of function?

• Has inputs and outputs
• Every input has only ONE output
• Inputs have different outputs every time
• x-values and y-values

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.
• Yes, because each x-value has only one y-value paired with it.
• No, because the x-value 11 has two y-values pair with it.
• No, because each x-value has only one y-value paired with it.

• Function
• Not a Function

Is this table a function or not a function? 

• Function
• Not a Function

What's the initial value of the equation y = 2x + 4

• 4

• -4

• 2

• 2x

What are the rate of change and initial value?

• Rate of Change = 3 Initial Value = 8

• Rate of Change = 1/3 Initial Value = 8

• Rate of Change = 8 Initial Value = 3

• Rate of Change = 8 Initial Value = 1/3

Is the function Linear or Nonlinear?

• Linear
• Nonlinear

Is this function linear or nonlinear?

• Linear
• Nonlinear

Which graph is linear?

• Graph A
• Graph B
• Graph C
• Graph D

Which equation represents the following graph?

• y = 3x + 2
• y = -2x + 3
• y = 2x + 3
• y = -3x + 2