Explain why or why not the following table is Quadratic. Only check one box that has the correct function and rationale. *
X
1
2
4
5
3 4 5
19 | 37 | 59
f(x) -5
5
It is not quadratic
Quadractic, first difference is 4
Quadratic, firshgifference is 10
Quadratic, second difference is 14
Quadratic, second difference is 4 no algebra

step-by-step explanation:

4  

25

5258y

54.

t5

5r

54

5856

542

5458

86

.8558.65

565

565

55898

786

8/95

5896

8656265

556478

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).