The number of bank debit cards issued (in millions) if given

Last updated: 7/30/2022

The number of bank debit cards issued (in millions) if given by the function C(x)=-0.31x³+5.8x2-15x +9, where 'x' is the number of years since 1990. How many debit cards were issued in the year 1993? 0.51 million debit cards 9 million debit cards 7.83 million debit cards 2431 million debit cards 24.57 million debit cards