Question

For an experiment, Sarah put 27 milligrams of salt into a glass of water to see how quickly the salt dissolves.

What type of function appropriately models this situation?

exponential growth
quadratic
exponential decay
linear

@ganeshie8 @jim_thompson5910 @satellite73 @tkhunny @TheSmartOne

Answer 1

What do you think?

Answer 2

We need a better experiment. It might be Exponential Decay, but that measures how much salt is NOT dissolved and isn't really what is being asked.

Answer 3

^ I agree

Answer 4

That's exactly what the problem says...

Answer 5

Well, that's why I said we need a better question.

If we are going to see "how long", that's a stop watch problem and there is no need of a model or function. Just click the stop watch when it's gone.

We need a better question.