A population of bacteria is treated with an antibiotic. It is estimated that 5,000 live bacteria existed in the sample before tr

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A population of bacteria is treated with an antibiotic. It is estimated that 5,000 live bacteria existed in the sample before tr

eatment. After each day of treatment, 40% of the sample remains alive. Which best describes the graph of the function that represents the number of live bacteria after x days of treatment? f(x) = 5000(0.4)x, with a horizontal asymptote of y = 0 f(x) = 5000(0.6)x, with a vertical asymptote of x = 0 f(x) = 5000(1.4)x, with a horizontal asymptote of y = 0 f(x) = 5000(1.6)x, with a vertical asymptote of x = 0 Mark this and return

Mathematics

2 answers:

ale4655 [162] · Answer 1 · 2022-01-23T19:58:02+03:00

<span>It is estimated that 5000 live bacteria existed in the sample before treatment. After each day oftreatment, 40% of the sample remains alive. Which best describes the graph of the function thatrepresents the number of live bacteria after x days of treatment? f(x) = 5000(0.4)x, with a horizontal asymptote of y = 0 f(x) = 5000(0.6)x ...</span><span>
</span>

mylen [45] · Answer 2 · 2022-01-23T20:59:00+03:00

Answer:

The correct option is A.

Step by step explanation:

The exponential function is defined as

Where, a is initial value and b is growth factor or decay factor.

The initial population of bacteria is 5000.

After each day of treatment, 40% of the sample remains alive. It means the growth factor or decay factor is

Therefore the required function is

The horizontal asymptote is y=0 because

Therefore option A is correct.

Step-by-step explanation: