SOLUTION: Determine whether the equation is a function. x^2-4y^2=1

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Question 674461: Determine whether the equation is a function.
x^2-4y^2=1

Found 2 solutions by stanbon, MathLover1:
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
Determine whether the equation is a function.
x^2-4y^2=1
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It is not a function because there are 2 y-values for each
x value.
4y^2 = x^2-1
y^2 = (x^2-1)/4
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y = +Sqrt[(x^2-1)/4] AND = -sqrt[(x^2-1)/4]
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Cheers,
Stan H.
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Answer by MathLover1(20849)   (Show Source): You can put this solution on YOUR website!





so, your equation is
the "basic" hyperbola the function, but not all hyperbolas are functions:




the ones that are functions are in the form of ; whenever is , you do a
so, your hyperbola is a


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