Math 213 - Quadric Surfaces
Quadratic Curves
Cylinders
Quadric Surfaces
Summary
Math 213 - Quadric Surfaces
Peter A. Perry
University of Kentucky
September 11, 2019
Peter A. Perry Math 213 - Quadric Surfaces
University of Kentucky
Quadratic Curves
Reminders
Cylinders
Quadric Surfaces
Summary
? Access your WebWork account only through Canvas!
? Homework A3 on section 12.5 is due tonight ? Homework A4 on section 12.6 is due Friday ? Quiz # 2 on sections 12.3-12.4 takes place in tomorrow's
recitation
Peter A. Perry Math 213 - Quadric Surfaces
University of Kentucky
Quadratic Curves
Cylinders
Quadric Surfaces
Unit I: Geometry and Motion in Space
Summary
12.1 Lecture 1: Three-Dimensional Coordinate Systems 12.2 Lecture 2: Vectors in the Plane and in Space 12.3 Lecture 3:The Dot Product 12.4 Lecture 4:The Cross Product 12.5 Lecture 5: Equations of Lines and Planes, I 12.5 Lecture 6: Equations of Lines and Planes, II 12.6 Lecture 7: Surfaces in Space 13.1 Lecture 8: Vector Functions and Space Curves 13.2 Lecture 9 Derivatives and Integrals of Vector Functions
Lecture 10: Exam I Review
Peter A. Perry Math 213 - Quadric Surfaces
University of Kentucky
Quadratic Curves
Cylinders
Learning Goals
Quadric Surfaces
Summary
? Recall quadratic curves from MA 114 ? Identify and graph cylinders ? Find traces of quadric surfaces ? Identify and graph quadric surfaces
Peter A. Perry Math 213 - Quadric Surfaces
University of Kentucky
Quadratic Curves
y
y
y
Cylinders
Quadric Surfaces
Summary
A quadratic curve is the graph of a second-degree equation
x
in two variables taking one of the forms
Ax2 + By2 + J = 0, Ax2 + By2 + Jy = 0
In MA 114 you learned about the following quadratic curves:
x
?
x2 The ellipse a2
+
y2 b2
= 1 with foci (?c, 0), where
a2 = b2 + c2
? The parabola x2 = 4py with focus at (0, p) and directrix at y = -p
?
x2 The hyperbola a2
-
y2 b2
= 1 with foci at (?c, 0)
x
where c2 = a2 + b2
Peter A. Perry Math 213 - Quadric Surfaces
University of Kentucky
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