The Answers to the First part of the contest are the following.

1. C
2. C
3. C
4. B
5. D
6. A
7. C
8. D
9. C
10. B
11. B
12. A
13. D
14. B
15. D
16. C
17. D
18. C
19. C
20. B

Now if anyone wants to earn a couple bonus tickets,
Tell me how many answers you got right, and please be honest

Pfft that's easy... I got 0 right! Wooooo! Go me!

Looks like I got them all correct.

You didn't take part in this part of the round. So you earned nothing, and lost nothing.
Unless you go make that puzzle.

That you did so 20 tickets, and 5 tickets extra for checking the answers with mine and telling me if you got any wrong.

19. I knew I missed the second one about which is a function.

19 correct answer!!

19 tickets +5 *for telling me how many you got wrong.

19 tickets and +5 for telling me how many you got wrong.

I got 10 wrong :D

17 of my answers were correct.

#2
- B and D can't be functions because of y^2. For a function, each x goes to a unique y. With y^2, y can be a positive or negative number and give the same result.
- I'm not sure about why A is not, I'm assuming because of the extra value in the range.
- C has each domain value going to exactly one range value and multiple domain values going to the same range value is OK. Since C was definite, I went with it.

#19
From the chart we see log10(6.8) = 0.8325 and log10(6.9) = 0.8388, but we need log10(6.85), so if you average the two values from the chart, you get 0.83565 rounding to 0.8357 (C)

At least, that's how I got my answers.

Yes, B and D were definitely not a function for the reason you explain. I had doubts between A and C, and finally choose A.



I didn't know what to do in this one, so rounded 6.85, resulting in 6.9 and looking for the log10(6.9)

I got 19 correct, screwed up on #2.

I got 17 right LOL :D guess i'm not as stupid as i look:P