I believe 30 is the answer :)
Answer:

Step-by-step explanation:
Given

Required
Determine the period
A sine function is represented as:

Where

By comparing:
and 

So:

So, we have:



Hence, the period of the function is 
Just multiply them together and get a4-2a2-24.
(a2-6)(a2+4)
F: a4
O:4a2
I:-6a2
L:-24
Add together
a4-2a2-24
Answer:
I am pretty sure that you just make the line steeper than the others, nothing specifically. I'm learning this in middle school and I would appreciate if someone else could specify on why
Step-by-step explanation: