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Does the set of ordered pairs {(-2, 4),
(-1, 6), (0, 5), (2, 4), (5, 9)} represent a
function? Why or why not?
A Yes, because each x-value corresponds
to exactly one y-value
B
Yes, because each y-value corresponds
to exactly one x-value
C No, because there are two ordered pairs
with a y-coordinate of 4
D No, because a graph of these points
does not pass the vertical line test