The function f(x) = x2 − 12x 5 written in vertex form is f(x) = (x − 6)2 − 31. what are the coordinates of the vertex? (6, 31) (−6, 31) (6, −31) (−6, −31)

Aparking garage charges $1.12 for the first hour and 0.50 for each additional hour. what is the maximum length of time tom can park in the garage if we wishes to play no more than $5.62