Question

8. Identify the mapping diagram that represents the relation and determine whether the relation is

a function.
(−2, −5), (−1, −3), (−2, 6), (5, 7)}

Answer 1

Not a function

Explanation:

For this to be a function there can not be 2 of the same x values.

Our points for this are (−2, −5), (−1, −3), (−2, 6), (5, 7)

Your x value is the number on the left side of the point=

When we look at our points we see that -2 is repeating for (-2,-5) and (-2,6)

If we plot these points on a graph and use the vertical line test we see that our line passes thru the 2 points.

So this is not a function