Functions Review

How do you know if a set of a points such as: {(0,1), (2,0), (3,6)} is a function?

• The y values do not repeat
• The x values do not repeat
• The points do no have the same numbers
• It is linear

What is domain?

• All possible y values
• The function
• All possible x values
• The size of the graph

What is range?

• All possible x values
• All possible y values
• The size of the graph
• The shape of the graph

Which value for x would make this set of numbers NOT a function? {(0,1), (x,0), (3,5), (2,6)}

• 1
• 3
• 4
• 6

Given the function y=2x-3, what numbers will go in the first and last box of the function table?

• 6 and 10
• -1 and 5
• 3 and 13
• 4 and 9

Given the function y=2x-3, what value would go in the missing box?

• 6
• 9
• 7
• 15

Is this a function?

• Yes
• No

What is the domain of this function?

• [3,5]
• 3<x<5
• {3, 4, 5}
• From 3 to 5

What is the range of the function?

• [3,5]
• [14,18]
• {14, 16, 18}
• 14<y<18

What is the domain?

• [-2,-4
• [-2,0]
• (-4,0]
• (-3,1]