## Determining depth of various percentages of sunlight beneath ocean surface

Quadratic equations and inequalities, variation equations, function notation, systems of equations, etc.
LFountain
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Joined: Sun Jul 26, 2015 11:36 pm
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### Determining depth of various percentages of sunlight beneath ocean surface

I'm having a difficult time trying to figure out how to determine at what depth beneath the surface of the ocean that there is 1% sunlight. Here is the function that was provided:

f(x) = 17(0.965)^x

I keep getting 16.405 but it says that's incorrect.

maggiemagnet
Posts: 358
Joined: Mon Dec 08, 2008 12:32 am
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### Re: Determining depth of various percentages of sunlight beneath ocean surface

I'm having a difficult time trying to figure out how to determine at what depth beneath the surface of the ocean that there is 1% sunlight. Here is the function that was provided:

f(x) = 17(0.965)^x

I keep getting 16.405 but it says that's incorrect.
How did you get that? What does this stand for? What do "x" and "f" stand for? When you write back please show all of your steps. Thanks!