Question

I Need Help Please!!! tell whether each sequence is arithmetic. Justify your answer. If the sequence is arithmetic, write a function rule to represent it.

1.-5,5, -5,5,...
2.46,31,16,2,...
3.0.2,-0.6,-1.4,-2.2,...

Answer 1

Find the difference between successive terms and see if the difference is the same. If it is then it is an arithmetic sequence.

Answer 2

well can u help me with the first one..? please

Answer 3

1. -5, 5, -5, 5,...
1st term: -5
2nd term: 5 Difference between 2nd term and 1st term is: 5 - (-5) = 10
3rd term: -5 Difference between 3rd term and 2nd term is: -5 - (5) = -10
The differences are not the same and therefore this is not an arithmetic sequence.

Answer 4

Okaay Thank you so much ill give u a medal for helping me(:

Answer 5

You are welcome.