Write an equation to describe the sequence below. Use n to represent the position of a term in the sequence, where n = 1 for the first term.
-11,-22,-44, …
To find a pattern in the given sequence, we observe that each term is obtained by multiplying the previous term by -2.
So, the equation to describe this sequence can be written as:
aₙ = -2 * aₙ₋₁
Where aₙ represents the nth term in the sequence and aₙ₋₁ represents the (n-1)th term.