1. What's a 1 min chart on eur/usd? Is that a just a chart that updates every 1 minute with exchange rate values?
No - all charts update continuously. A 1-minute chart (on EUR/USD or on anything else you can trade) is a chart on which the information is presented in units/bars/candles/whatever each representating units of 1 minute of time. In this example, the information's typically presented in such a way that the "open", "high", "low" and "close" of every 1-minute elapsed can be seen at a glance. The mechanism by which this is done varies. For example "bar charts" and "candle charts" present the same information in different ways. Bar charts visually emphasise the high and low, while candle charts visually emphasise the open and close. In either case, the movements up and down
within the minute are not displayed after the end of the minute/"period", once the bar/candle has been "printed".
2. What do you do when you 'trend the trend'? Is that betting on it going up/down if it looks like it's on an upward/downward trend?
Yes.
3. How do you know it's on a trend and that the trend is 'clearly in place'?
There are
very many different ways of deciding this. The overall slope of the pattern of lines/candles can tell you. Many people also use some kind of "indicator" (sometimes a "moving average") to tell them, but this isn't really necessary.
"Trend" is even defined in different ways, according to different criteria, for different trading purposes.
4. What is 1 to 3 pip profit?
A "pip" is the smallest unit of price-change (actually this isn't quite true. There are micro-pips or "pipettes" these days, too). Example: if you look at GBP/USD and the rate is 1.4956 and goes up to 1.4957, that's a one-pip difference. Or if you buy GBP/USD at 1.4956 and sell it at 1.4959, that's a 3-pip profit.
This link will help you (and keep you busy!), and answer all of the above and countless related questions in all the detail you can need for a general overview:
http://www.babypips.com/school
NB (with specific regard to the context of this thread): most people/sources - myself included - would generally advise any beginners
against trying to trade from 1-minute charts, in the interests of concentrating on the "bigger/slower-moving picture", and for other reasons, too.
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