20 1 taxicab geometry
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20.1 Taxicab Geometry PowerPoint PPT Presentation


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20.1 Taxicab Geometry. The student will learn about:. other geometric figures in Taxicab Geometry. 1. 1. Introduction. We are going to examine a variety of geometric figures that use distance in their definitions. Definitions. A. Let A (0, 0). Graph all the points P so that PA = 6.

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20.1 Taxicab Geometry

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20 1 taxicab geometry

20.1 Taxicab Geometry

The student will learn about:

other geometric figures in Taxicab Geometry.

1

1


Introduction

Introduction

We are going to examine a variety of geometric figures that use distance in their definitions.


Definitions

Definitions

A

Let A (0, 0). Graph all the points P so that PA = 6.

What is the name given to this set of points?


Definitions1

Definitions

Just as a circle is all the points equidistant from a fixed point the other conics may be defined with respect to distance.

A parabola is all the points equidistant from a fixed point (focus) and a fixed line (directrix).


Taxicab parabolas

Taxicab Parabolas

Consider the line that is the x-axis and the point F(0, 2). Find the set of points P so that the taxicab distance from the line is equal to the distance PF.


Taxicab parabolas1

Taxicab Parabolas

Find all the points equidistant from the point and line given below.

6

6


Definition

Definition

Given two points A and B (foci), an ellipse is all the points P so that │PA + PB│ = d where d is some fixed positive constant.

After view the examples given be able to make and observation about d.


Taxicab ellipse

Taxicab Ellipse

Consider the two points A(0, 0) and B(6, 0). Find the set of points P so that the │AP + BP│= 10

A

B


Taxicab ellipse1

Taxicab Ellipse

Consider the two points A(0, 0) and B(5, 5). Find the set of points P so that the │AP + BP│= 14

B

A


Taxicab ellipse2

Taxicab Ellipse

Consider the two points A(0, 0) and B(4, 2). Find the set of points P so that the │AP + BP│= 12

B

A


Definition1

Definition

Given two points A and B (foci), a hyperbola is all the points P so that │PA - PB│ = d where d is some fixed positive constant.


Taxicab hyperbolas

Taxicab Hyperbolas

Consider the two points A(0, 0) and B(6, 6). Find the set of points P so that the │AP - BP│ = 4


Taxicab hyperbolas1

Taxicab Hyperbolas

Consider the two points A(0, 0) and B(6, 2). Find the set of points P so that the │AP - BP│ = 4


Summary

Summary.

  • We learned about taxicab ellipses.

  • We learned about taxicab hyperbolas.


20 1 taxicab geometry

With the remaining class time lets work on our homework assignment 20.1.


20 1 taxicab geometry

Assignment: §20.1

and Ideal City


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