Answer:
aₙ=-7*2ⁿ⁻¹
Step-by-step explanation:
The common ratio is r=-28/-14=-14/-7=2
The explicit formula for a geometric sequence is aₙ=a₁*rⁿ⁻¹ where aₙ is the nth term, r is the common ratio, and a₁ is the first term.
Given:
a₁=-7
r=2
Therefore, the explicit formula for the sequence is aₙ=-7*2ⁿ⁻¹
