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The first term of an arithmetic sequence is -5, and the tenth term is 13. Find the common difference. a. 8/9 b. 2
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The first term of an arithmetic sequence is -5, and the tenth term is 13. Find the common difference.

a. 8/9
b. 2

User Mnebuerquo
by
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1 Answer

5 votes
Hello,

Answer B

a_(0)=-5\\a_(9)=a_(0)+9*r\\13=-5+9*r\\r= (18)/(9)=2
User AussieJoe
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