SOLUTION: Tell whether the following equation determines y to be a function of x: y2 =x+3 a)yes b)no c)sometimes d)only when x =-1

Algebra ->  Linear-equations -> SOLUTION: Tell whether the following equation determines y to be a function of x: y2 =x+3 a)yes b)no c)sometimes d)only when x =-1      Log On


   

Question 316360: Tell whether the following equation determines y to be a function of x: y2 =x+3
a)yes
b)no
c)sometimes
d)only when x =-1
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
I'm assuming you mean y%5E2=x%2B3
then no, because for a unique x value you can have two y values which violates the definition of a function.
Example:
x=0
y%5E2=3
y=0+%2B-+sqrt%283%29
b) is the correct answer.