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

I can’t see the two images for A and B. From the two tables shown:

- C is not a function (x = 0 paired with four different y-values).
- D is not a function (x = −5 paired with y = 0 and y = 10).

So the correct choice must be A or B. Please either upload or describe the images for A and B (or tell me which one passes the vertical-line test); I’ll tell you which one shows y as a function of x and why.