Question

6. The first five terms in a pattern are shown below.
-0.5, -0.25, 0, 0.25, 0.5, …
If the pattern continues, which expression can be used to find the nth term?
A. 0.75𝑛 − 1.25
B. −0.25𝑛 − 0.25
C. 0.25𝑛 − 0.75
D. −0.5𝑛 + 0.25

Answer 1

First term = -0.5
terms = n
common difference = 0.25
arithmetic progress
nth term = -0.5 + 0.25 (n-1)

Answer 2

thank you