Colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours, and Jaquan starts with 80 bacteria that double every 3 hours. x= number of DAYS. Would Colby's experiment be modeled by...

y=50(2)^x

y=50(2)^8x

or y=50(2)^12x


Would Jaquan's experiment be modeled by...

y=80(2)^x

y=80(2)^8x

or y=80(2)^12x