If 3 is the first term, what is the 10th term in the following sequence?
3, 9, 27, 81, 243, ...
Enter your answer here:
59049
Right!
The student correctly found the 10th term of a geometric sequence.
729
That's incorrect, but you are close. You correctly identified the rule for generating successive terms in the sequence, but you found the next term, instead of the 10th term.
The student found the next term of a geometric sequence, instead of the 10th term.
19683
That's incorrect, but you are close. You correctly identified the rule for generating successive terms in the sequence, but you found the 9th term, instead of the 10th term.
The student found the 9th term of a geometric sequence, instead of the 10th term.
177147
That's incorrect, but you are close. You correctly identified the rule for generating successive terms in the sequence, but you found the 11th term, instead of the 10th term.
The student found the 11th term of a geometric sequence, instead of the 10th term.
249
Sorry, that's incorrect. It looks like you found the difference between the first two terms in the sequence, and added this value to the 5th term. But this is a geometric sequence, so you should multiply to find successive terms. Also, you are looking for the 10th term, rather than the next term.
The student may have misidentified the sequence as arithmetic instead of geometric. Also, the student may have tried to generate the next term, instead of the 10th term.
273
Sorry, that's incorrect. It looks like you found the difference between the first two terms in the sequence, and added this value to generate successive terms. But this is a geometric sequence, so you should multiply to find successive terms.
The student may have misidentified the sequence as arithmetic instead of geometric.
Sorry, that was incorrect.
The student got this item incorrect.
ExtendGeometric