Question

Tell whether the relationship
in this table represents a function

Answer 1

This is not a function graph because the X value zero is mentioned twice.
(0,8)(0,68)

Answer 2

Answer: Not a function

Reason: x = 0 repeats itself. The input x = 0 leads to multiple outputs y = 8 and y = 68 at the same time. A function must have each x input lead to exactly one y output only.

Visually the two points (0,8) and (0,68) fail the vertical line test, which is a quick way to determine if we have a function or not.