Respuesta :
Answer:
b, quadratic with constant second difference of 96
Step-by-step explanation:
The function is cubic with a constant third difference of 96.
What is Function?
A function is defined as a relation between a set of inputs having one output each. In simple words, a function is a relationship between inputs where each input is related to exactly one output.
Using differences:
X f(x) first difference second difference third
3 39 - - -
5 187 (187-39)/2= 74 - -
7 551 (551-187)/7-5 = 182 182 - 74/2 = 54 -
9 1227 (1227-551)/(9-7)=338 338-182/2=78 78-54/2 = 12
11 2311 (2311-1227)/2=542 542-338/2=102 102-78/2 = 12
According to table,
The function is cubic, because the third average change rate is constant of 12.
12>0, so the third difference is >0 then -96 is false.
Thus, the function is cubic with a constant third difference of 96.
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