Final answer:
To correct an elongated image on an x-ray, the vertical angulation needs to be decreased to compensate for the elongation, thereby producing a more accurate x-ray image.
Step-by-step explanation:
To correct an elongated image on an x-ray view, the proper adjustment is to the vertical angulation. When an image appears elongated, it is due to the incorrect angle relative to the object and the film. In general, to correct elongation, you would need to decrease the vertical angulation. This change in the angle will compensate for the elongation and help produce a more accurate representation of the object being x-rayed.
It is not effective to increase the angulation to exacerbate the elongation or to adjust it to the same degree as the horizontal angulation; these options would not correct the image distortion. Also, keeping the vertical angulation constant does not address the issue, as it doesn't correct for the elongation already present in the image.