Identifying and Graphing Sequences: lesson 4-1 -Complete the table and state the domain and range for the sequence.
Domain:
Range:
Write the first four terms of each sequence.
1.
2.
3.
4.
Emma pays $10 to join a gym. For the first 5 months she pays a monthly $15 membership fee. For the problems 6-7, use the explicit rule f(n)=15n+10

So the first thing we do is to multiply the top equation by 3. the reason i want to do this is i notice there will be a 6y on both equations and can possibly add/subtract them. so we get 6y = -3x + 27. adding that and the second equation we get 6x = 27-15 which is 12. divide by 6 and we get 2. ∴ x = 2. substituting 2 into the first equation we get 2y = -2 + 9 which is 7. divide by 2 and we get 7/2. ∴ y = 7/2, x = 2.

It took off from 11 degrees