Answer:
Yes, this function can be defined by linear model.
Step-by-step explanation:


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If it snows do I have to do my homework
Answer:

Interval notation: 
Step-by-step explanation:
<u>First inequality:</u>
<u />
Therefore, this inequality restricts:

<u>Second inequality:</u>

Therefore, this inequality restricts:

Therefore, with both of these restrictions together, we have:
.