Question

What are the next three terms of the sequence 1, -3, 9, -27,…?
A. -54. 162, -486
B. -81, 243, -729
C. 81, -243, 729
D. 57, -162, 486

Answer 1

I don't know this one sorry:(

Answer 2

Seems like it's multiplying by (-3) each time. 1*(-3) = -3. -3*(-3) = 9. 9*(-3) = -27. -27*(-3) = ?

Answer 3

Yes they are. The pattern is that each number is being multiplied by -3

Answer 4

\(\Large 1, -3, 9, -27= (-3)^0, (-3)^1 , (-3)^2 , (-3)^3 \)
So,the next three terms of the sequence:
\(\Large (-3)^4,(-3)^5,(-3)^6=81,-243,729\)

The correct answer is C