Question

Medal, Need help!

The tenth, eleventh, and twelfth terms of a sequence are shown in the table below:


Term number10 11 12
Term 42 47 52


Which of the following shows the first five terms of the sequence?
3, -2, -7, -12, -17
2, 7, 12, 17, 22
-3, 2, 7, 12, 17
-2, -7, -12, -17, -22

Answer 1

each increase of 1 results in an increase of 5 units

Answer 2

u need to figure where this series started

Answer 3

and I do that how............?

Answer 4

the tenth term is 42 ...

Answer 5

okay

Answer 6

-3 + 5(N-1)

where N is the term number

Answer 7

for instance N= 1

-3 +5(1-1)
-3 +0
-3

Answer 8

ok

Answer 9

that is the initial term when N=1,
Use N=2,3,4 for the next few terms

Answer 10

You can also think of it like, the tenth term is 42 and each term increases by 5.
So to get to the first term, you need to move back 9 spots from the 10th term. which is 9 times 5 = 45 less than the 10th term.

Answer 11

k

Answer 12

hit best response and close out question please