On the graph shown, what is f(3)? The graph comes down from the left and goes through the points negative three comma four, negative one point five comma two, and zero comma one. Then it continues coming down as a linear function that passes through the point one comma negative one, two comma negative three, and then continue toward negative infinity.

−5
−3
−2
−1

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