What are the explicit equation and domain for a geometric sequence with a first term of 4 and a second term of −12

Domain: Set of Natural numbers.

Step-by-step explanation:

The general explicit equation for the nth term of a geometric sequence is:

, where r is the common ratio.

Given: First term =

Second term =

Common Ratio=

Now, the explicit equation for given geometric sequence is:

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.