Thank you Ashley!!! In order
1: D
2: BCD (See the note on #6)
3: BC
4: C
5: ACD
6: BCE (Equations that ARE NOT functions have square roots in them. If y is to the power of 2, then you have to take the square root to solve it, which makes it not a function. Remember the graphing packet, all the functions that were not functions were square root problems)
7: A
8: BD
9: A (square roots only make numbers >= to 0)
10: -3
11: D
12: C
13: C
14: B
15: A
16: A
17: A
18: ACD
19: C
20: D
21: C
22: D
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