which of the following is y a function of x:
A) x2 + 2y = -4 or B) X2 - y =2
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Function of "y a function of x" (denoted y = y( x)
y-varies according to whatever value x takes on. A causal relationship is often implied (i.e. "xcauses y"). or varies directly. In this particular question
we can find the value of y to determine if x causes y
2y=-4-x2. this does not give the correct answer of y
B is the correct answer
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