B is the answer I think.Please make me brainlist answer!
Answer:
y
Step-by-step explanation:
This is what it looks like. It opens to the right.
Answer:
a₁ = 1
r = 3
Step-by-step explanation:
Since it’s a geometric series then
a₁ = 1 ( because 1 is the first term of the series)
3/1 = 9/3 = 27/9 = 81/27 = 3 then r=3.
Step-by-step explanation: