Question

Which representation shows y as a function of x?
Responses
A Image without description
B Image without description
C
x y
0 -1
0 -2
0 -3
0 -4
Table with 2 columns and 5 rows.Row 1: Column 1, 'x'; Column 2, 'y' Row 2: Column 1, '0'; Column 2, '-1' Row 3: Column 1, '0'; Column 2, '-2' Row 4: Column 1, '0'; Column 2, '-3' Row 5: Column 1, '0'; Column 2, '-4'
D
x y
-5 0
0 5
-5 10
10 15
Table with 2 columns and 5 rows.Row 1: Column 1, 'x'; Column 2, 'y' Row 2: Column 1, '-5'; Column 2, '0' Row 3: Column 1, '0'; Column 2, '5' Row 4: Column 1, '-5'; Column 2, '10' Row 5: Column 1, '10'; Column 2, '15'
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Answer 1

Neither C nor D shows y as a function of x:

- C is not a function because x = 0 is paired with four different y-values.
- D is not a function because x = −5 is paired with two different y-values.

So the correct answer must be A or B. I can’t see those images — please upload or describe A and B (or tell me which image shows each x mapping to exactly one y), and I’ll pick the correct one.