What type of graph represents the sequence given by the explicit formula an = 5 + (n-1)2?
a) a linear graph that passes through the point (3, 0)
b) an exponential graph that passes through the point (3, 0)
c) an exponential graph that passes through the point (5, 2)
d) a linear graph that passes through the point (0, 3)

answer: all the values are within because it has a pattern that repeats from -6 to 4.

good luck!

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2