Question

help read the instructions ffirst

Answer 1

solution of part(a)

Concept of Vertical line test:

The vertical line test states that a curve in the plane represents the graph of a function if and only if no vertical line intersects it more than once.

Given :

A relation table between x and y

To find:

Using vertical line test verify whether the graph of x,y is a function or not

Solution and answer:

From attached fig(a) is is clear that two vertical lines which are not part of graph intersect the graph at one and only point

Thus it is a function

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Part(b)

Given :

A relation table between x and y

To find:

Using vertical line test verify whether the graph of x,y is a function or not

Solution and answer:

From attached fig(a) is is clear that a vertical line PQ which is not part of graph intersect the graph at two pints M1 and M2

Thus it is not a function

Answer 2

Answer:

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