Match each graph with the situation it represents.

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4

Colby and jaquan are growing bacteria in an experiment in a laboratory. colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. jaquan starts with 80 of a different type of bacteria that doubles every 3 hours. let x equal number of days. colbys experiment follows the model: a.) y=50*2^x b.) y=50*2^8x c.) y=50*2^12x jaquans experiment follows the model: a.)80*2^x b.)80*2^8x c.)80*2^12x

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)