+39 
can i pls get the explanation too with the question? this is a review so if i don't know how to do it i can't do problems like it. thank you
+505 This is for problem 1:
An easy way to determine if a sequence is geometric or arithmetic is by seeing if it is multiplied or divided by a number (geometric) or added or subtracted by a number (arithmetic).
A. The numbers in the sequence are divided by a number, the number being 2. This means it is geometric!
B. The numbers in the sequence have a number added to them, the number being 4. This means it is arithmetic!
+505 This is for problem 2:
a. Plug in some values for f(x)=6x−4
| 1 | 2 |
| 2 | 8 |
| 3 | 14 |
| 4 | 20 |
This matches to 19.
b. If you are wondering how to solve this function, here's how:
Since you already know what f(1) is, you can start solving for f(2)!
f(2)=6∗f(2−1)=6∗f(1)=6∗2=12
By doing this two more times, you can see this matches to 16.
c. Plug in some values for
| 1 | 2 |
| 2 | 13 |
| 3 | 118 |
| 4 | 1108 |
You see this function matches to 18.
By this you can match d. to 17.
Matches:
16 ---> b.
17---> d.
18---> c.
19---> a.
