Which equation below shows the processing power of a computer by year, where y is the number of transistors and x is the number of years since 1965?

Which equation below shows the processing power of a computer by year where y is the number of transistors and x is the number of years since 1965 class=
Which equation below shows the processing power of a computer by year where y is the number of transistors and x is the number of years since 1965 class=