We need explaining and examples not just the question
Answer:
9/2 or 4.5
Step-by-step explanation:
Hello,
The question is
<span>"What are the explicit equation and domain for a geometric sequence with a first term of 2 and a second term of −8?"
It is a geometric sequence =>U(2)=U(1)*r==>-8=2*r ==>r=-4
U(1)=2=2*(-4)^0
U(2)=-8=2*(-4)=2*(-4)^1
U(3)=32=-8*(-4)=2*(-4)(-4)=2*(-4)^2
U(4)=-128=32*(-4)=2*(-4)^3
...
U(n)=2*(-4)^(n-1) where n>=1.
Answer C
</span>
Answer:
<h2>C. (-1, 9)</h2>
Step-by-step explanation:
