It's hard to explain by words so sorry if you don't understand. For the graphing part, starting from (-3, 0), plot points in (1, 2), (6, 3), and connect them. The end of a line should be (10, 3.5). You will understand better if you use graphing calculator.
The answer of a second question is {x|x is greater or equal to -3.
Answer:
three and three eighteenths
5 3/6 = 33/6
2 1/3 = 7/3 = 14/6
33/6 - 14/6 = 19/6 = 3 1/6 or 3 3/18
Actually you can't solve this. There is no solutions.
Are there anymore numbers after the six? If there is not then it si already rounded to the nearest tenth.
The closest answer I can see you type is: 35/1.66666666
This is because you divide 21 by 18 which (if you divide 21 by 1.666666 you get 18) and whatever you do to 1 side, you do to the other, then you get 35/1.6666666