Suppose a computer virus begins by infecting 8 computers in the first hour after it is released. Each hour after that, each newly infected computer causes 8 more computers to become infected. The function y = 8x models this situation. Make a table with integer values of x from 1 to 4.

Question

Suppose a computer virus begins by infecting 8 computers in the first hour after it is released. Each hour after that, each newly infected computer causes 8 more computers to become infected. The function  y = 8x models this situation. Make a table with integer values of x from 1 to 4.

anonymous · Answer

x=1,2,3,4 y=8,16,24,32

anonymous · Answer

shouldn't the function be 8^x tho?

anonymous · Answer

first hour : 8 computers
Second hour : 8 * 8 computers = 64 computers,
Third : 8 * 64 computers = 512 computers...

experimentx · Answer

i think it should be rather like this 
8, 8 + 64, 72 +(72)*8, 72 +(72)*8 + (72 +(72)*8)*8, ..

anonymous · Answer

ah, yes, even better. What would be the function of that tho?

anonymous · Answer

yes your theory is correct to the real world, but the given questions states the relation y=8x

experimentx · Answer

let's try to find out

experimentx · Answer

f(x) = 8 * 9^(x-1)

anonymous · Answer

I only remember the general form of (1+a)^x = y... is it 8(1+8)^(x-1)?

anonymous · Answer

Excellent! But that doesn't really help the original poster. @Shada, could you confirm that it's indeed 8x or 8^x?

anonymous · Answer

thanks for trying to help me. i really appreciate it but i dont kno which answer to choose

anonymous · Answer

The function in your problem, is it :
$$8^{x}$$ or 8x?

anonymous · Answer

its 8x

anonymous · Answer

alright, then Chemengineer was right in the very first answer

anonymous · Answer

thanks for the help