(a) The curve with equation y = x + 3x² is called the Tschirnhausen cubic. Find an equation of the tangent line to this curve at the point (1, 2). y = (b) At what points does this curve have horizontal tangents? (x, y) = (smaller y-value) (x, y) = | (larger y-value) (c) Illustrate parts (a) and (b) by graphing the curve and the tangent lines on a common screen. y 31 (1, 2) (1, 2) 31 (-2, 2) y 31 (1, 2) (1, 2) (0, 1) (-2, –2)

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter6: Topics In Analytic Geometry
Section6.2: Introduction To Conics: parabolas
Problem 4ECP: Find an equation of the tangent line to the parabola y=3x2 at the point 1,3.
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(a) The curve with equation y = x + 3x² is called the Tschirnhausen cubic. Find an equation of the tangent line to this curve at the point (1, 2).
y =
(b) At what points does this curve have horizontal tangents?
(x, y) :
(smaller y-value)
=
(х, у) -
(larger y-value)
(c) Illustrate parts (a) and (b) by graphing the curve and the tangent lines on a common screen.
y
31
y
(1, 2)
3
8
(1, 2)
27
-3
2
-3
2,
8
3
27
-3-
-3
y
31
(-2, 2)
y
3-
(1, 2)
(1, 2)
(0, 1)
-3
2
(-2, -2)
-3F
Transcribed Image Text:(a) The curve with equation y = x + 3x² is called the Tschirnhausen cubic. Find an equation of the tangent line to this curve at the point (1, 2). y = (b) At what points does this curve have horizontal tangents? (x, y) : (smaller y-value) = (х, у) - (larger y-value) (c) Illustrate parts (a) and (b) by graphing the curve and the tangent lines on a common screen. y 31 y (1, 2) 3 8 (1, 2) 27 -3 2 -3 2, 8 3 27 -3- -3 y 31 (-2, 2) y 3- (1, 2) (1, 2) (0, 1) -3 2 (-2, -2) -3F
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