How can I find the half-life of something using
a table and a graph.
And which method do you think is best; table or graph? Why?

Thanks guys. Best response will be given out :)

Question

How can I find the half-life of something using
a table and a graph. 
And which method do you think is best; table or graph? Why?


Thanks guys. Best response will be given out :)

australopithecus · Answer

Use the second formula on the very top of the page, it is called the exponential decay formula you should just memorize it. You can use it to find half life using either two points on a graph and from two data points from a table https://en.wikipedia.org/wiki/Exponential_decay Half life can be found using lamda (the rate, I usually just call lamda, "r". Lamda being that funky symbol next to t) Half life = ln(2)r I'm using r to represent lamda, so yeah just to be clear: lamda = r

australopithecus · Answer

ooops

half life = ln(2)/r

ignore the first equation I posted for half life!!!!!!

australopithecus · Answer

If you have any questions please ask

anonymous · Answer

@Australopithecus Thank you.

australopithecus · Answer

*lambda

australopithecus · Answer

blah I need sleep, also woo thanks for the medal finally 75 took forever

anonymous · Answer

Haha I could use some sleep myself. And you're welcome : @Australopithecus