Presentation is loading. Please wait.

Presentation is loading. Please wait.

A Typical Graph  This is an example of a typical graph we are all familiar with.  The graph is made up of different “points” with lines that connect.

Similar presentations


Presentation on theme: "A Typical Graph  This is an example of a typical graph we are all familiar with.  The graph is made up of different “points” with lines that connect."— Presentation transcript:

1

2 A Typical Graph  This is an example of a typical graph we are all familiar with.  The graph is made up of different “points” with lines that connect the points.

3 A Typical Graph  Each point has two values indicating place:  The “X” value that runs along the horizontal “X” axis  The “Y” value that runs along the vertical “Y” axis Y axis X axis

4 A Typical Graph  X value is always stated first, followed by the Y value  The “origin” is the point where the two axes intersect with a value of (0,0) (0,0) (3,8) Y X (9,5)

5 Typical Graph  A point can also have a negative (-) value  Negative X values are to the left of the origin (0,0)  Negative Y values are below the origin X Y (-X,+Y) (+X,-Y) (+X,+Y) (-X,-Y) (0,0)

6 East West, North South on the Earth The X axis is the equator.  The Y axis is the prime meridian that runs through Greenwich, England.  Lat/Long are the two grid points by which one can locate any point on Earth. Y X

7 East West, North South on the Earth  Let each of the four quarters (quadrants) then be designated by North or South and East or West. N S EW

8 East West, North South on the Earth  The N tells us we’re north of the equator. The S tells us we’re south of the equator.  The E tells us that we’re east of the prime meridian. The W tells us that we’re west of the prime meridian. (N, W) (N, E) (S, W) (S, E)

9 East West, North South on the Earth  All points in North America will have a North latitude and a West longitude because it is North of the equator and West of the prime meridian. (N, W) Prime Meridian

10 East West, North South on the Earth  What would be the latitude and longitude directions in Australia? Prime Meridian ? If you said South and East, you’re right!

11 What is Latitude?  Latitude is the distance from the equator along the Y axis.  All points along the equator have a value of 0 degrees.  North pole = 90°N  South pole = 90°S  All values are in stated in degrees. Y X 90°S 90°N

12 What is Latitude?  Each degree of latitude is divided into 60 minutes.  Each minute is divided into 60 seconds. Y X 90°S 90°N This is also true of longitude.

13 What is Latitude?  For example,  40° 02’ 51’’N  This is close to the latitude where you live. Y X 90°S 90°N

14 And Longitude?  Longitude is the distance from the prime meridian along the X axis.  All points along the prime meridian have a value of 0 degrees longitude.  Earth is divided into two parts, or hemi- spheres, of east and west longitude. Y X 180°W 180°E

15 Meridians and Parallels?  Earth is divided into 360 equal N-S slices (meridians) -180 west and 180 east of the prime meridian  Earth is divided into 180 equal E-W slices (parallels) -90 north and 90 south of the equator Y X 180°W 180°E

16 Meridians and Parallels?  Meridians of longitude run N and S, but are used to measure E and W.  Parallels of latitude run E and W, but are used to measure N and S

17 What is our location?  Central Peoria’s latitude and longitude are approximately:  40°, 44’, 24’’N  89°, 36’, 36’’W Y X 90°S 90°N

18 So Where is (0,0)?  The origin point (0,0) is where the equator intersects the prime meridian.  Point (0,0) is off the western coast of Africa in the Atlantic Ocean.

19 In which quadrants are the following latitudes and longitudes?  1. 41°N, 21°E  2. 37°N, 76°W  3. 72°S, 141°W  4. 7°S, 23°W  5. 15°N, 29°E  6. 34°S, 151°E AB C D

20 Let’s see how well you did...  1. B  2. A  3. C  4. C  5. B  6. D

21

22 Equator Latitude 0 o Latitude: (90 o N to 90 o S) Latitude 23½ o NorthTropic of Cancer Latitude 23½ o South Tropic of Capricorn Longitude 30 o East Longitude 60 o East Longitude 30 o West Longitude 60 o West Positioning on the Earth’s Surface East is the direction of rotation of the Earth North Pole South Pole 23½ o 66½ o 90 o st June 22 nd December 22 nd Sept 20 th March 30 o E 60 o E90 o E 90 o W 30 o W 60 o W Longitude 90 o East Longitude 90 o West Prime Meridian 0 o Longitude Longitude: (180 o E to 180 o W) Latitude and Longitude together enable the fixing of position on the Earth’s surface.

23 Now you are ready to find some locations on a map!


Download ppt "A Typical Graph  This is an example of a typical graph we are all familiar with.  The graph is made up of different “points” with lines that connect."

Similar presentations


Ads by Google