Functions Pre-Algebra

Which graph represents the table?

• 
• 
• 
• 

What is the y-intercept for the given graph?

• -5

• 5

• 1

• -1

Is this mapping a function or not a function? 

• Function, because every input has only one output

• Not a Function, because the 6 has two outputs

• Function, because every output has only 1 input

• Not a Function, because the 10 has two inputs

Is this graph a function or not a function? 

• Function, it passes the vertical line test

• Not a Function, it fails the vertical line test

• Function, it fails the vertical line test

• Not a Function, it passes the vertical line test

Which equations represents the relationship between t and u?

• t = 5 + 5

• u = t + 5

• u = t x 2

• t = 10 - 5

Which equation matches the table?

• y = 3x + 9

• y = x + 9

• y = x + 3

• y = 12x - 3

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

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)

Which list of numbers completes the table?

• 41,46

• 42,46

• 42,45

• 44,48

Which of the following equations describes the relationship between a and b?

• b = a +13

• b = a +5

• b = a +18

• b = a +14