Find the points of tangency of horizontal and vertical tangents to the curve r2+4ry+ 16y = 16.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.3: Lines
Problem 21E
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A. Tagent and Normal Lines
1. Find the points of tangency of horizontal and vertical tangents to the curve r²+4ry+
16y = 16.
2. At what points on the curve y = r³+ 5 is its tangent
(a) parallel to the line 12r – y = 17,
(b) perpendicular to the line r + 3y = 2?
3. Find the equation of the tangent lines to 9r² + 16y² = 52 that are parallel to the line
9x – 8y = 1
4. Find the equations of the tangents to the hyperbola ry = 1 through the point (-1,1).
Transcribed Image Text:A. Tagent and Normal Lines 1. Find the points of tangency of horizontal and vertical tangents to the curve r²+4ry+ 16y = 16. 2. At what points on the curve y = r³+ 5 is its tangent (a) parallel to the line 12r – y = 17, (b) perpendicular to the line r + 3y = 2? 3. Find the equation of the tangent lines to 9r² + 16y² = 52 that are parallel to the line 9x – 8y = 1 4. Find the equations of the tangents to the hyperbola ry = 1 through the point (-1,1).
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