Yes, of course you can make $100 a day trading with $100. Just invest $100 to buy a stock that will go up 100% before market closes.
The short answer is yes. The long answer is that it depends on the strategy you plan to utilize and the broker you want to use. Technically, you can trade with a start capital of only $100 if your broker allows. However, it will never be successful if your strategy is not carefully calculated.