How do you graph g(x)=f(x)+5

What is a graph with a never ending line called?

If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?