SOLVED:The focal chord that is perpendicular to the axis of a parabola is called the latus rectum. For the parabola y^2=4 p x in Figure 11, let F be the focus, R be any point on the parabola to the left of the latus rectum, and G be the intersection of the latus rectum with the line through R parallel to the axis. Find |F R| |R G| and note that it is a constant.
SOLVED:The focal chord that is perpendicular to the axis of a parabola is called the latus rectum. For the parabola y^2=4 p x in Figure 11, let F be the focus, R be any point on the parabola to the left of the latus rectum, and G be the intersection of the latus rectum with the line through R parallel to the axis. Find |F R| |R G| and note that it is a constant.
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