Question

The diameter of a bacteria colony that doubles every hour is represented by the graph below. What is the diameter of the bacteria after 8 hours?

Answer 1

http://assets.openstudy.com/updates/attachments/55943875e4b01def59ee04d2-rebellioussoul-1435777201438-openstudygraph.jpg

Answer 2

127 bacteria
255 bacteria
511 bacteria
1,023 bacteria

Answer 3

Time: 0 -> 1 Bacteria
Time: 1 -> 2 Bacteria
Time: 2 -> 4 Bacteria
so, in time x we have 2^x bacteria
now, in time 8 (after 8 hours) we have 2^8 Bacteria, means 256!
and in start we have 1, so after 8 hours we have 255 bacteria plus that one!

the answer is 255

Answer 4

@Hero

Answer 5

@Hero Right here:)

Answer 6

@Mackenzie_Willa, you can answer the question by coming up with the equation for the given graph. Have you thought about what the equation for the graph might be?

Answer 7

thanks @triciaal. I was trying to get the user to figure it out for himself.

Answer 8

No, it's fine:)

Answer 9

So, then would we plug in numbers?

Answer 10

@hero sorry I did not look at other responses after I was messaged then tagged and started responding. will let you continue I will ask people not to message me when they have

Answer 11

It's not about you posting a response, it's about your approach. We discussed this already.

Answer 12

@hero will make sure I check first before responding if I am on again

Answer 13

I think you're still missing my point, but okay.

Answer 14

Anyways, let 's get back to the question, okay?

Answer 15

We can all be friends lol :D

Answer 16

Hello? I'm willing to work with anyone, I just want to know if the answer was correct or not??