A virus is spreading by a factor of 2 every hour from 1:00 p. m. to 11:00 p. m. The function below shows the number of viral infections, f(x), after x hours from 1:00 p. m.: f(x) = 20(2)x

Which of the following is a reasonable domain for the function?

All positive integers
1 ≤ x ≤ 11
0 ≤ x ≤ 20
0 ≤ x ≤ 10

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

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you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.