Positive 3, If You're starting at -6 and you add the first 6 it's at 0, now you have 3 more to add to make 9. And that gives you positive 3. or if you do 9 - 6 you can get your answer that way too.
No! it’s a trinomial, a polynomial consists of 4 or more terms :)
Answer:
first pic = the second choice
second pic = the last choice
I don't quite understand the question but from what it's given us so far, I can only assume that it is asking which axis the both of them measured?
Vivian measured the X-Axis, as it said she measured it as 6 units long.
Brook only stated that the distance on the line is 4 units, so I can only assume that she measured the Y-Axis.
I don't know if this helped but if so please give brainliest :D

We'll use the formula below

So:

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We'll use the formula below

So: