SC READY Math Grade 8 Practice Questions - South Carolina SC READY Mathematics Assessment - Grade 8 Exam

By definition, why does a vertical line intersecting a graph at two points prove the graph is NOT a function?

A single input value x corresponds to more than one output value y A single output value y corresponds to more than one input value x The graph does not pass through the origin (0,0) The rate of change is negative

Correct Answer:

A single input value x corresponds to more than one output value y

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