Question

The function f(x)=5000(0.98)0.3x represents the number of white-blood cells, per cubic millimeter, in a patient x days after beginning treatment for a virus.

What is the average decrease per day in white-blood cells per cubic millimeter between days 1 and 5?

​ −29.75 mm3/day ​

​ −34.75 mm3/day ​

−282.47 mm3/day

−353.08 mm3/day

Answer 1

Do you think any idea?

Answer 2

i think it is C

Answer 3

May I see your work guided you to that answer, please?

Answer 4

to mine

Answer 5

\[\Large f(x)=5000(0.98)^{0.3x}\]

That is the main equation of the decaying of white-blood cells number.

the average decay could be calculated as follows:
\[\frac{\left(f\left(5\right)-f\left(1\right)\right)}{5-1}\]

https://www.desmos.com/calculator/fxlmllovm8