Who were the Roman Vigils and what was their purpose?

Technically they were the policemen and the firemen of Rome at the time.

Their purpose was "to counterbalance the enormous power of the Praetorian Guard in the city of Rome"

Hope that helps.

                                                                                                           -Goodman

local max is .5

step-by-step explanation:

the local maximum is for x values between 2 and 4

it looks like the x value is 2.5 and the y value is .5

the first part is ocean

explanation: