Question

T(n) is the total number of lights in a triangular lighting rig of n rows, as shown. Which polynomial function represents T(n + 1)?
T(n)=1/2n^2+1/2n


a. T(n+1)=1/2n^2+3/2n+1
b. T(n+1)=1/2n^2+1/2n+1
c. T(n+1)=1/2n^2+n+1
d. T(n+1)=1/2n^2+1

Answer 1

Note:
Whomever responds to this question please do not directly give the answer, only guide the asker towards it
-thanks