PLEASE HELP!!!!! MEDALS!!!! The number of bacteria in a colony,B, after t hours, B=a x 2^t (the x is multiplication) where a is the number of bacteria in the colony at t=0. If the value of a quadruples, how does this affect the value of B at time t?

A. Increases by a factor of 4
B. Decreases by a factor of 4
C. Decreases by a factor of (square root of 2)
D. Increases by a factor of 2

Question

PLEASE HELP!!!!!   MEDALS!!!!   The number of bacteria in a colony,B, after t hours, B=a x 2^t (the x is multiplication) where a is the number of bacteria in the colony at t=0. If the value of a quadruples, how does this affect the value of B at time t? 

A. Increases by a factor of 4 
B. Decreases by a factor of 4 
C. Decreases by a factor of (square root of 2) 
D. Increases by a factor of 2

irishboy123 · Answer

swap a by 4a and look at the original equation