Question

Mohamed and Li Jing were asked to find an explicit formula for the sequence -5, -25, -125, -625, where the first term should be g(1). Which one of them is right?

a) Mohamed
b) Li Jing
c) Both are right
d) Both are wrong

Answer 1

Both Mohamed and Li Jing are wrong. The correct formula for the given sequence is g(n) = -5^n.

Step-by-step explanation:

Both Mohamed and Li Jing are wrong in finding an explicit formula for the sequence -5, -25, -125, -625. To find the explicit formula, we need to look for a pattern in the sequence. In this case, each term is obtained by multiplying the previous term by -5. So, the formula for the nth term of the sequence can be written as g(n) = -5^n.