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OpenStudy (brucebaner):
help me @arek
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OpenStudy (brucebaner):
OpenStudy (brucebaner):
B?
OpenStudy (welshfella):
Hint: functions are either one-to-one or many-to-one NOT one- to- many so if you see 2 or more pairs in which the first number is the same and the second number is different then its one-to-many and not a function.
OpenStudy (anonymous):
do the vertical line test. you can't have 2 points with the same x coordinate
OpenStudy (welshfella):
no not B as you have (-2,3) and ( -2,1)
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OpenStudy (brucebaner):
A?
OpenStudy (welshfella):
yes
OpenStudy (brucebaner):
thx can you help me with more?
OpenStudy (welshfella):
ok but i only have 10 minutes
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