Question

How do ik if the graph represents a function
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Answer 1

Answer/Step-by-step explanation:

If the graphs relation is a function it will never repeat its x-values. In a function, there should only be 1 output(y) for each single input(x). Each x must correspond with only one y value.

Answer 2

use the vertical line test you can not have more than one point on a vertical line (or a x value)

Explanation: