The answer would be 2. As you can see on the point, you already have (-2,2) as a point. F(x) equals y in a sense. So when plugging in x into a function, you should get its respect y value. In the function graph, -2 yields 2. Therefore, your answer is 2.
For the first one I believe that the numbers are both odd and I am not sure about the second one sorry
D because it is the only one that is unpredictable
Your answer would be A.
according to the 30°, 60°, 90° triangle rules,
side a would equal x

and side c would equal 2x
Let the melting point be x degree C.
-188-x= 32
-x=32+188
-x=220
x= -220
Hence, the melting point of fluorine is -220 degree C.