Extend the following sequence by giving the next two terms:
1.13, 1.31, 1.49, 1.67, 1.85, ...
Enter your answer here:
and
2.03
2.21
Right! You correctly generated the next two terms in the arithmetic sequence.
The student got this item correct.
Sorry, that's incorrect. The sequence given in the problem, 1.13, 1.31, 1.49, 1.67, 1.85,. . . is an arithmetic sequence. In this case, there is a common difference of .18 between terms. To get any term, add .18 to the previous term.
The student got this item incorrect.
ExtendArithmetic