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3 years ago

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

Mathematics

2 answers:

Zigmanuir [339]3 years ago

8 0

Answer:

Step-by-step 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.

Vilka [71]3 years ago

4 0

Answer:

Step-by-step explanation:

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