Question

Find the 11th term of this sequence. -10,20,-40,80...

Answer 1

-10240

Explanation:

Look at the numbers. (-10(-2) = 20. (20)(-2) is -40. (-40)(-2) is 80. Keep multiplying it by -2 to get your 11th term.

If done correctly, your answer is -10240

Answer 2

the difference is not constant therefore there cannot be an 11th term that is correct.