SOLUTION: Determine which of the equations define a function with independent variable x. For those that do, find the domain. For those that do not, find a value of x to wh

Algebra ->  Functions -> SOLUTION: Determine which of the equations define a function with independent variable x. For those that do, find the domain. For those that do not, find a value of x to wh      Log On


   

Question 937719: Determine which of the equations define a function with independent variable x. For those that do, find the domain. For those that do not, find a value of x to which there corresponds more than one value of y.
2x + ǀyǀ=7
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Determine which of the equations define a function with independent variable x. For those that do, find the domain. For those that do not, find a value of x to which there corresponds more than one value of y.
2x + ǀyǀ=7
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Not a function because for some value of "x", y has 2 values.
Example::
If x = -7, |y| = 7+ 14 = 21
Then y = 21 of y = -21
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Cheers,
Stan H.
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