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Which one of the given equations does not represent a function?

a) 2 - x = x - y
b) 2
x^(4) + 4 =
√(y + 2)
c) y = -2
x^(2) + 16x + 34
d) x -
y^(2) = 13

1 Answer

6 votes

Answer:

d. x - y^2 = 13

Explanation:

This is a parabola which is symmetrical about the x axis so will not pass the vertical line test for a function.

User Shirly
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