Irene C.

asked • 07/07/13

What is the next number in the sequence 3,9,-1,-4,-15

can't find a pattern. can you help


3 Answers By Expert Tutors


Robert J. answered • 07/07/13

4.6 (13)

Certified High School AP Calculus and Physics Teacher

Peter G.

Hi Jonny.

This makes sense except for the fact that the multiplier should be "6" for this line as "5" has already been used:

-87 x 5 = -522 (multiplication, increasing multiplier by 1)

should be

-87 X 6 = -522

Thus the remainder of the problem needs to be adjusted.



James P. answered • 07/07/13

5 (5)

Slightly Epic Math Tutoring

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