Answer:
sequence is arithmetic
Step-by-step explanation:
A geometric sequence has a common ratio r between consecutive terms.
An arithmetic sequence has a common difference d between consecutive terms, thus
11 ÷ 14 ≠ 8 ÷ 11 ≠ 5 ≠ 8 ← not geometric
11 - 14 = - 3
8 - 11 = - 3
5 - 8 = - 3
There is a common difference d between consecutive terms
Thus sequence is arithmetic.
f(x) = ax + b
(0, -4):
f(0) = a•0 + b
f(0) = b ⇒ b = -4
(12, 0):
0 = a•12 + b
0 = 12a - 4
4 = 12a
![a=\frac4{12}=\frac13](https://tex.z-dn.net/?f=a%3D%5Cfrac4%7B12%7D%3D%5Cfrac13)
The equation of the green line:
![\underline{\,y=\frac13x-4\,}](https://tex.z-dn.net/?f=%5Cunderline%7B%5C%2Cy%3D%5Cfrac13x-4%5C%2C%7D)
or: ![y=\frac13x-4](https://tex.z-dn.net/?f=y%3D%5Cfrac13x-4)
The answer would be (x+5) x (x+1)
Answer:
5
Step-by-step explanation:
12.60 / 7 = $ 1.80 per bottle
10.98 / 6 = $ 1.83 per bottle
18.10 / 10 = $ 1.81 per bottle
16.38 / 9 = $ 1.82 per bottle
best buy (cheapest) is : $ 12.60 for 7 bottles <==