Unit 2 Review--8th grade

What is the algebraic equation for this table?

• y = x + 3
• y = 3x
• y = x ÷ 3
• y = x - 3

Which equation matches the table?

• y = x 
• y = 5x
• y = x - 4
• y = x + 4

Is function represented by the table linear or nonlinear?

• linear
• nonlinear

Which function is linear?

• y = 2x + 4
• y = 2x² + 4
• y = 2x(4 − 3x)
• xy = 15

• Function
• Not a Function

Is the function linear or nonlinear?

• Linear Function
• Nonlinear Function

Which graph is linear?

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

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 this mapping a function or not a function? 

• Function
• Not a Function

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)
• (3,4) (4,-3) (7,4) (3, 8)
• (6,-5) (7, -3) (8, -1) (9, 1)
• (2, -2) (5, 9) (5, -7) (1, 4)