Question

What is the common ratio between successive terms in the sequence? 2,-4, 8, -16, 32, 64,. O-2 O6 O6 O2

Answer 1

a ratio is always a division

We check it by dividing the next number by the previous one

`\begin{gathered} -(4)/(2)=-2 \\ (8)/(-4)=-2 \\ -(16)/(8)=-2 \end{gathered}`

we can continue but is the same number

so the common ratio is -2