Need algebra help for Determining whether an equation defines a function: Basic

Algebra
Tutor: None Selected Time limit: 1 Day

Dec 18th, 2015

Hello!

1) no, for some x-s there are 2 different y's, for some no such y's

2) yes, y = 2x-6  is a function

3) yes, y = 3x^2-1 is a function

4) no, for some x-s there are 2 different y's, for some no such y's

Please ask if something is unclear.
Dec 18th, 2015

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