2. Consider Pell's equation associated to n = 2: x²2y² = = 1. One of the solutions is N(1, 0) (a) Using computer software, plot the curve H defined by the above equation. (b) Find two solutions where x, y> 0 by trial and error. Call them A(x1, y₁) and B(x2, y2). (c) Find the equation of the line AB.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.3: Lines
Problem 22E
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2.
Consider Pell's equation associated to n = 2:
x² - 2y² = 1.
One of the solutions is N(1, 0)
(a) Using computer software, plot the curve H defined by the above equation.
(b) Find two solutions where x, y > 0 by trial and error. Call them A(x₁, y₁) and B(x2, Y2).
(c) Find the equation of the line AB.
(d) Find the equation of the line parallel to AB and passing through N. Call this line L.
(e) Find the other point of intersection of L and H, call it X (x3, y3). What do you observe?
Bonus Express the coordinates of X in term of x1, y1, x2, Y2.
Transcribed Image Text:2. Consider Pell's equation associated to n = 2: x² - 2y² = 1. One of the solutions is N(1, 0) (a) Using computer software, plot the curve H defined by the above equation. (b) Find two solutions where x, y > 0 by trial and error. Call them A(x₁, y₁) and B(x2, Y2). (c) Find the equation of the line AB. (d) Find the equation of the line parallel to AB and passing through N. Call this line L. (e) Find the other point of intersection of L and H, call it X (x3, y3). What do you observe? Bonus Express the coordinates of X in term of x1, y1, x2, Y2.
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