It seems that you have missed the necessary options for us to answer this question, but anyway, here is the answer. Based on the given scenario above about what Annabelle did, the kind of statistical investigation that she performed was a SURVEY. Hope this helps.
Answer:
Forth term of the sequence is 61
Step-by-step explanation:
Let's just go from a1 to a4:
a1 = 5
a2 = 2x5+3 = 13
a3 = 2x13+3 = 29
a4 = 2x29+3 = 61
2x<2
_ __
2 2
x<1
hope this helps
The graph of a cubic function has its ends in opposite direction.
A cubic function with positive coefficient rises towards right and falls towards left.
A cubic function with negative coefficient rises towards left and falls towards right.
The graph attached below shows the parent cubic function y = x³