
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 Â Â Â Â Â Â 39 Â Â Â Â Â Â Â Â Â Â Â Â - Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â - Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â -
5 Â Â Â Â Â Â 187 Â Â Â Â Â Â (187-39)/2= 74 Â Â Â Â Â Â Â Â Â Â Â - Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â -
7 Â Â Â Â Â Â 551 Â Â Â Â Â Â (551-187)/7-5 = 182 Â Â 182 - 74/2 = 54 Â Â Â Â Â Â Â Â Â -
9 Â Â Â Â Â 1227 Â Â Â Â Â (1227-551)/(9-7)=338 Â 338-182/2=78 Â Â Â Â Â 78-54/2 = 12
11 Â Â Â Â Â 2311 Â Â Â Â Â (2311-1227)/2=542 Â Â Â 542-338/2=102 Â Â Â 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.
Learn more about function from:
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