Hi there!
The slope of both lines is the same (2). We need to transformate f(x) 13 upwards to get g(x).
f(x) = 2x - 5
g(x) = 2x - 5 + 13 = 2x + 8
For the first one, the answer is 2. You can only fold it vertically and horizontally. For the second one, the answer is O because any way you turn it, it still looks like O. I hope this helps!