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1 vote
The first term of an arithmetic sequence is -5, and the tenth term is 13. find the common difference

2 Answers

6 votes

Answer:

2

Explanation:

Equivalent question: Find the slope of line going through points (1,-5) and (10,13).

Line points up vertically and subtract. Then put 2nd difference on top of first difference.

(1,-5)

(10,13)

---------'subtracting

-9, -18

So the slope of the line gong through point's (1,-5) and (10,13) is -18/-9=2.

The common difference of an arithmetic sequence whose first term is -5 and whose tenth term is 13 is 2.

User Kergoth
by
7.7k points
2 votes

Answer:

2

Explanation:

User AJFMEDIA
by
8.9k points

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