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(-3,0), (0,-4), (2,0), (2,5). This is not a function of X. But what's the best explanation for why out of these choices.
a
(-3, 0) has a negative x-value.
b
(2, 0) and (2, 5) have the same x-value but different y-values.
c
(0, -4) has a negative y-value.
d
(-3, 0) and (2, 0) have the same y-value but different x-values.

Respuesta :

joshlind3

Answer:

B

Step-by-step explanation:

Let's eliminate our options

A: The answer is not A because functions can have negative x values.

B: This one immediately seems right to me because a function cannot have one input that spits out two outputs. This would fail the vertical line test

C: Like A, having negative values in either the x position or y position does not rule out a function. e.g. y = x - 4

D: Unlike B, having two of the same y coordinates does not rule out a function. The function could be quadratic. e.g. y = (x+3)(x-2)

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