Point P(3t2, 6t), where t > 0, lies on the parabola y² = 12x. (a) Show that the equation of the normal to the parabola at point P is given by (b) (c) y + tx = 6t+3t³ This normal crosses the x - axis at point Q and M is the mid-point of QP. Find the coordinates of point M. Find the Cartesian equation of the locus of point M. Give your answer in the form y = f(x).

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section: Chapter Questions
Problem 17RE
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Point P(3t2, 6t), where t > 0, lies on the parabola y² = 12x.
(a) Show that the equation of the normal to the parabola at point P is given by
y + tx = 6t+3t³
This normal crosses the x
(b) Find the coordinates of point M.
axis at point Q and M is the mid-point of QP.
(c) Find the Cartesian equation of the locus of point M.
Give your answer in the form y = f(x).
Transcribed Image Text:Point P(3t2, 6t), where t > 0, lies on the parabola y² = 12x. (a) Show that the equation of the normal to the parabola at point P is given by y + tx = 6t+3t³ This normal crosses the x (b) Find the coordinates of point M. axis at point Q and M is the mid-point of QP. (c) Find the Cartesian equation of the locus of point M. Give your answer in the form y = f(x).
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