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Hey Oscar, it looks like you've already answered the question! Usually we would work backwards to find out the nth term from a sequence of numbers. In this case it looks like we would have had a sequence like: -4, -2, 0, 2, 4 etc. where this sequence starts from the 1st term Detecting the difference between each number in the sequence and seeing that it 'goes up' by 2 each time, usually means the n is multiplied by 2, i.e. 2n We can only assume the '-6' part of the equation if we were told that the 1st term is -4. If we are not told which nth the original sequence is, you may be being asked a different question, like to determine which term a number would be (what is the value of n) based on the number in the sequence and the given equation. Hope this helps!
Asked by Scarlett
What is the range of 3 7 2 4 7 5 7 1 8 8