# How to properly understand an exchange rate

I am having an enormous amount of confusion on exchange rates.

If for example , i have an exchange rate of £/\$=1.10, i know that with one pound i can buy 1.10 dollars. First question: So can the exchange rate be written as 1.10\$?.

Now, in terms of appreciation and depreciation:

lets say that the exchange rate increases to £/\$=1.20.

On investopedia i read that: As a rule of thumb, the increase or decrease of a rate always corresponds to the appreciation/depreciation of the base currency, and the inverse corresponds to the quoted currency.

So according to investopedia, the pound has appreciated.

But then i read another article that states:

if you have an exchange rate quoted as X/Y,

If X/Y goes up then Y appreciated..

If X/Y goes down then Y depreciated..

Can somebody tell me in simple terms how to understand what currency is appreciating/depreciating ? And can somebody please answer my first question?

EDIT: this is not a dupe. I am trying to understand how to read exchange rates and why two articles give opposing answers on the same topic.