For this case we must find the domain of the following function:
By definition, the domain of a function is given by all the values for which the function is defined.
In this case, the argument of the expression must be greater than 0 to be defined.
Thus, the domain of the function is given by all the values of x greater than -2.
Answer:
Domain: 
C 1:3 it you multiply both numbers by 2 you will have 2:6. 1:3 is just simplified
Ok, I cant see the image because I'm on a school laptop but I can tell you that if there are infinite solutions you will sbasically see one line on the other . the simple definition of a solution is just the point that the two or more lines all cross. so look at it and see howmany intercecting points there are.
