Hey!
Hope this helps...
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Question 7: Is the Graph a 1-to-1?
The answer is: No
Reason: If you look at the graph, you see that when the x value is -1 the y value is -2, when x is 0, y is 0. When x is 1, y is 2, when x is 3, y is 4, and so on and so on...
Question 9: What is f(2)?
The answer is: When f (or x) is 2, y is 3... so f(2) = 3
Reason: (Look at reason for Question 7)
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