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OpenStudy (anonymous):
Which of the following represents a function? a. x^2+y^2=49 b. y=|x| c. x= [ [y] ] d. x=y^2
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OpenStudy (anonymous):
I think c is because the other ones are either an abosolute value equation or like a parabola possibly d. because for a x and y are either 7 or -7, not a function b is an absolute value I think d ight work for any real number. C is my final answer but the x should have been f(x)
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