Answer: 3
Step-by-step explanation:
A simple way to calculate the distance between numbers on a number line is to count every number between them. A faster way is to find the distance by taking the absolute value of the difference of those numbers. We have to find PQ. TAking the difference we have 94-91= 3.
It could be anything they are both variables.
As x approaches -inf f(x) -> -inf
and as x approaches inf, f(x) approaches +inf
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