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# Hard expontential question I don't understand watch

1. So...

t0 = 2
t2 = 3.81
t∞ = 12

h = A - Be-kt
2 = A - B
3.81 = A - Be-2k
12 = A - Be-k

...How do I proceed this question?

Thanks..
2. The first thing you notice is that A is 12 I believe as when t = infinity becomes closer and closer to zero and as the maximum height is 12 then A has to equal 12
3. (Original post by M4cc4n4)
The first thing you notice is that A is 12 I believe as when t = infinity becomes closer and closer to zero and as the maximum height is 12 then A has to equal 12
Thanks I wouldn't have known that..
4. (Original post by ℓove)
Thanks I wouldn't have known that..
Idk it will come with experience

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