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14.1 and 14.2.notebook
1
March 07, 2017
Mar 76:54 AM
Module 14
lessons 1: Distance on a coordinate Plane
Lesson 2: Polygons in the Coordinate Plane
Objectives: solve problems by graphing using coordinates and absolute value to find distances
Find the length of a side on a polygon
Mar 76:57 AM
Reflection:
a transformation of a figure that flips across a line
Mar 77:00 AM
PointReflection
over yaxis
Reflection
over xaxis
(3,2)
(3,5)
(2,6)
(3,7)
Mar 77:08 AM
Solving distance problems
1. Identify the ordered pairs
2. Determine if the x or y values have changed
3. find the absolute value
4. Add
Feb 1112:40 PM
Find each distance.
1/4
What is the distance between point C and point D?
What is the distance between point A and point B?
Feb 1112:40 PM
2/5
2/4
The coordinate plane represents a map. Eachgrid unit represents 20 miles. A gas station islocated at G(–70, –10). How long will it take atruck driving at 50 miles per hour to drive fromwarehouse M to this gas station?
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14.1 and 14.2.notebook
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March 07, 2017
Feb 1112:40 PM
1.
2.
The point (–9, 2) is reflected across the xaxis. What are the coordinates of thereflection?
What is the distance between the points (8, –4) and (–5, –4)?
Lesson Quiz
3/4
Distance in the Coordinate Plane
Feb 1112:40 PM
Lesson Quiz
3.
4.
What is the distance between the points (–7, –5) and (–7, –8)?
A truck travels from warehouse A at (–4, 8) to warehouse B at (–4, –1). If each unitrepresents 20 miles and the truck is traveling 60 miles per hour, how long will it take the truck to travel this distance?
4/4
Distance in the Coordinate Plane
Mar 77:13 AM
Complete page 404 numbers 18
Mar 77:13 AM
Polygons in the coordinate plane
Polygon: a closed figure formed by three or more line segments that meet at their endpoints
Vertex: is the point where two sides of a polygon meet.
Feb 1112:40 PM
Additional Example 1
The grid shows the path Lisa followed when she walked from her home (0, 1) to various locations and back home again. If each grid square represents one block, how many blocks did Lisa walk?
1/5
Polygons in the Coordinate Plane
Feb 1112:40 PM
2/5
Additional Example 2
The vertices of a polygon are A(0, 0), B(2, 2), C(2, 6), D(7, 6), E(7, 2), and F(9, 0). Graph the polygon. Then find its area.
2/5
Polygons in the Coordinate Plane
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14.1 and 14.2.notebook
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March 07, 2017
Feb 1112:40 PM
3/5
Lesson Quiz
1. The vertices of a polygon are A(0, 4), B(5, 4), C(5, –3), and D(0, –3). Graph the vertices and connect them in order. What is the perimeter of the polygon?
Polygons in the Coordinate Plane
Feb 1112:40 PM
4/5
2.
Lesson Quiz
The vertices of a polygon are A(4, –3), B(1, 2), C(1, 6), D(7, 6), and E(7, 2). Graph the polygon. What is the area of this polygon?
Polygons in the Coordinate Plane
Feb 1112:40 PM
Lesson Quiz
5/5
Polygons in the Coordinate Plane
3. The vertices of a quadrilateral are M(– 4, 2), N(6, 2), P(6, – 4), and Q(– 4, – 4). Graph the quadrilateral. Then find the perimeter and area.
Mar 76:53 AM
Feb 1112:40 PM
Additional Example 1
1/4
Find each distance.
A What is the distance between point A and point B?
B What is the distance between point C and point D?
7 units
3 units
Distance in the Coordinate Plane
Feb 1112:40 PM
0.4 hour, or 24 minutes
Additional Example 2
2/4
Distance in the Coordinate Plane
The coordinate plane represents a map. Eachgrid unit represents 20 miles. A gas station islocated at G(–70, –10). How long will it take atruck driving at 50 miles per hour to drive fromwarehouse M to this gas station?
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14.1 and 14.2.notebook
4
March 07, 2017
Feb 1112:40 PM
Lesson Quiz
1.
2.
The point (–9, 2) is reflected across the xaxis. What are the coordinates of thereflection?
What is the distance between the points (8, –4) and (–5, –4)?
(–9, –2)
13 units
3/4
Distance in the Coordinate Plane
Feb 1112:40 PM
Additional Example 1
22 blocks
Polygons in the Coordinate Plane
The grid shows the path Lisa followed when she walked from her home (0, 1) to various locations and back home again. If each grid square represents one block, how many blocks did Lisa walk?
1/5
Feb 1112:40 PM
34 square units
Additional Example 2
2/5
The vertices of a polygon are A(0, 0), B(2, 2), C(2, 6), D(7, 6), E(7, 2), and F(9, 0). Graph the polygon. Then find its area.
Polygons in the Coordinate Plane
Feb 1112:40 PM
24 units
3/5
Lesson Quiz
1. The vertices of a polygon are A(0, 4), B(5, 4), C(5, –3), and D(0, –3). Graph the vertices and connect them in order. What is the perimeter of the polygon?
Polygons in the Coordinate Plane
Feb 1112:40 PM
Lesson Quiz
4/5
39 square units
2. The vertices of a polygon are A(4, –3), B(1, 2), C(1, 6), D(7, 6), and E(7, 2). Graph the polygon. What is the area of this polygon?
Polygons in the Coordinate Plane
Feb 1112:40 PM
Lesson Quiz
5/5
Polygons in the Coordinate Plane
P = 32 units; A = 60 square units
3. The vertices of a quadrilateral are M(– 4, 2), N(6, 2), P(6, – 4), and Q(– 4, – 4). Graph the quadrilateral. Then find the perimeter and area.
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14.1 and 14.2.notebook
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March 07, 2017
Feb 1112:40 PM
Lesson Quiz
3.
4.
What is the distance between the points (–7, –5) and (–7, –8)?
3 units
3 hours
4/4
Distance in the Coordinate Plane
A truck travels from warehouse A at (–4, 8) to warehouse B at (–4, –1). If each unitrepresents 20 miles and the truck is traveling 60 miles per hour, how long will it take the truck to travel this distance?
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Attachments
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