What are the next three terms in the sequence 4, -1, -6, -11, ...?
-14, -21, -26
-14, -17, -20
-16, -21, -26
-18, -25, -32
The common difference in this sequence is -5. Subtracting 5 from the last term, -11, gives -16. Subtracting 5 from -16 gives -21. Subtracting 5 from -21 gives -26. Therefore, the next three terms are -16, -21, -26.
Answer: -16, -21, -26