Write answer in Simplest Form

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

Which is equivalent to 10/12? options: 10/18 5/6 3/12 9/11

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)