On the incomplete ray diagram for an object in front of a curved mirror, trace the path of Ray 1 as you would do to find the location and size of the image. F labels the focal point of the mirror.
You do not have to trace additional rays for this question.
Sorry ,I could not load diagram
Here is diagram.
As in fig ray1 ,after reflection from covex mirror ,it apprear comming from F. The straight ray from F and point of incidence ray extend upto infinity. Its image will not formed in real sense. It is said image will form at infinity.