Question 5 • CMS 2026-2027 NC Math 1 CREDIT RECOVERY
A population of bacteria is treated with an antibiotic. It is estimated that 5 comma 000 live bacteria existed in the sample before treatment. After each day of treatment, 40 percent 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?
Answer
A
f of x is equal to 5000 times 1 point 4 to the x th power , with a horizontal asymptote of y is equal to 0
B
f of x is equal to 5000 times 1 point 6 to the x th power , with a vertical asymptote of x is equal to 0
C
f of x is equal to 5000 times 0 point 4 to the x th power , with a horizontal asymptote of y is equal to 0
D
f of x is equal to 5000 times 0 point 6 to the x th power , with a vertical asymptote of x is equal to 0