The answer is c
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Answer:
and
.
Step-by-step explanation:
To this relation be a function, the horizontal coordinates can't be equal. So, let's find the value of
that makes those coordinates equal.

Using the null factor property, we have

Therefore, the given relation is not a function when
and
.
Answer:
m=1
Step-by-step explanation:
y2-y1/x2-x1
They are 7 points away from each other.