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50 PTS
Which relation is a function?

50 PTS Which relation is a function?-example-1
50 PTS Which relation is a function?-example-1
50 PTS Which relation is a function?-example-2

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5 votes

Answer:

  • Options C and D

Explanation:

Looking at the graphs we can state that:

A) Not a function as it fails the vertical line test. The three points has same x-coordinate of -1.

B) Not a function as it fails the vertical line test. The three points has same x-coordinate of 1.

C) Is a function as each x-value has a unique y-value:

  • (-3, 2), (- 1, 1), (0, - 3), (4, 1)
  • Passes the vertical line test

D) Is a function as each x-value has a unique y-value:

  • (-3, -2), (-2, - 1), (0, 3), (1, 0), (2, - 3)
  • Passes the vertical line test
User Stereoputrid
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