SOLUTION: This is a PARCC Algebra 1 Question which I do not agree with the answer. At the beginning of an experiment, the number of bacteria in a colony was counted at time t = 0. The

Algebra ->  Functions -> SOLUTION: This is a PARCC Algebra 1 Question which I do not agree with the answer. At the beginning of an experiment, the number of bacteria in a colony was counted at time t = 0. The       Log On


   

Question 944150: This is a PARCC Algebra 1 Question which I do not agree with the answer.

At the beginning of an experiment, the number of bacteria in a colony was counted at time t = 0. The number of bacteria in the colony t minutes after the initial count is modeled by the function b(t) = 4(2)^t. Which value and unit represent the average rate of change in the number of bacteria for the first 5 minutes of the experiment? Select all that apply.

A.) 24.0
B.) 24.8
C.) 25.4
D.) 25.6
E.) bacteria
F.) minutes
G.) bacteria per minute
H.) minutes per bacteria

The PARCC answer key says
B.) 24.8
G.) bacteria per minute
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
You need to identify two data points and determine the slope as change in b(t) over change in t.

You know the first point, (0,4).
Second point is (5,4*2^5).


(Yes. )