Table of Contents

## How do you read coordinates?

Coordinates are ordered pairs of numbers; the first number number indicates the point on the x axis and the second the point on the y axis. When reading or plotting coordinates you always go across first and then up (a good way to remember this is: ‘across the landing and up the stairs’).

## How are coordinates written?

Write the latitude and longitude coordinates. When writing latitude and longitude, write latitude first, followed by a comma, and then longitude. For example, the above lines of latitude and longitude would be written as “15°N, 30°E.”

## What are the types of coordinates?

Common coordinate systems

- Number line.
- Cartesian coordinate system.
- Polar coordinate system.
- Cylindrical and spherical coordinate systems.
- Homogeneous coordinate system.
- Other commonly used systems.
- Relativistic coordinate systems.
- Citations.

## When writing coordinates what comes first?

The order in which you write x- and y-coordinates in an ordered pair is very important. The x-coordinate always comes first, followed by the y-coordinate.

## How do you read Cartesian coordinates?

The position of any point on the Cartesian plane is described by using two numbers: (x, y). The first number, x, is the horizontal position of the point from the origin. It is called the x-coordinate. The second number, y, is the vertical position of the point from the origin.

## How do you write XYZ coordinates?

The Cartesian coordinates of a point in the plane are written as (x,y). The first number x is called the x-coordinate (or x-component), as it is the signed distance from the origin in the direction along the x-axis.

## What direction is XYZ?

XYZ Convention Positive Y-axis is north and positive X-axis is east. Z-axis is always the vertical axis and is positive upwards. Rotation follows the right-hand rule where the thumb is pointing in the positive direction along the axis of rotation and the curled fingers indicate the positive rotation direction.

## How do you plot three coordinates?

Plotting Points in Three Dimensions

- Locate x on the x-axis.
- From that point, moving parallel to the y-axis, move y units.
- From that point, moving parallel to the z-axis, move z units; this is your point.

## How do I find the slope of the line?

The slope of a line characterizes the direction of a line. To find the slope, you divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points.

## How do you know if 3 points lie on a straight line 3D?

Collinear 3 dimentional lines. Collinear points are all located on the same line. Another way of checking whether the points are collinear is by calculating the area formed by the points, if the area is zero then the points are collinear.

## What are 3 collinear points?

Three or more points that lie on the same line are collinear points . Example : The points A , B and C lie on the line m . They are collinear.

## How do you check if three points are on the same line?

Logic To Check If Three Points Are On One Straight Line Next we calculate slope of (x1, y1), (x2, y2) and (x2, y2) (x3, y3). If slopes of both these points are equal, then all these 3 points lie on same straight line.

## How do you know if coordinates lie on a straight line?

To determine if a point is on a line you can simply subsitute the x and y coordinates into the equation. Another way to solve the problem would be to graph the line and see if it falls on the line. Plugging in will give which is a true statement, so it is on the line.

## Which points does not lie on the curve y x 2?

The only point not on the graph of the equation y = x^2 is (3/2, 9/2).

## How do you check if a point lies between two lines?

You need to know that both lines are straight lines. This would be the shortest path between the beginning and the end points of each line. If it’s confirmed they are indeed straight; then one needs to know that the distance between the lines is the same at two points.

## How do you find a straight line?

Program to check whether list of points form a straight line or not in Python

- (x0, y0) := coordinates[0]
- (x1, y1) := coordinates[1]
- for i in range 2 to size of coordinates list – 1, do. (x, y) := coordinates[i] if (x0 – x1) * (y1 – y) is not same as (x1 – x) * (y0 – y1), then. return False.
- return True.

## How do you make a straight line on the floor?

Snap the First Chalk Line Pull the line very taut, and the hold the line down on the mark with one hand. Reach out with your other hand and lift up the chalk line about 10 to 12 inches from the floor—pulling straight up—then release the line so it snaps down onto the floor, creating a crisp, straight line.

## Is slope a line?

Slope, sometimes referred to as gradient in mathematics, is a number that measures the steepness and direction of a line, or a section of a line connecting two points, and is usually denoted by m. Generally, a line’s steepness is measured by the absolute value of its slope, m.

## How do you check if a line is straight in Word?

On a printed copy they are more obvious. You can try to straighten the line, but there’s a simpler way and that’s to make sure the line is straight when you insert it. To do so, click the Line tool and then hold down the Shift key while you click and drag to insert the line.

## How do I make vertical lines in Word?

To add a vertical line using the shape tool, go to Insert | Shapes and select the Line tool. Place the cursor where you want the line to start, and drag to where you want the other end of the line to be. Holding the Shift key while you drag will ensure that the line is straight.

## Why are arrows in word not straight?

To work around this problem and make the straight line horizontal, set the height to zero in the Size tab of the Layout dialog box. Similarly, to make the straight line vertical, set the width to zero. To display the Layout dialog box, right-click the line and choose More Layout Options.

## How do you insert a line arrow in Word?

On the “Insert” tab on the Ribbon, click the “Shapes” button. In the Lines group on the drop-down menu, click the “Line Arrow” option. A crosshair symbol will display. Press and hold your mouse button, then drag to draw the arrow.

## How do you align lines in Word?

Align the text left or right

- Select the text that you want to align.
- On the Home tab, in the Paragraph group, click Align Left or Align Right .

Latitude and longitude are broken into degrees, minutes, seconds and directions, starting with latitude. For instance, an area with coordinates marked 41° 56′ 54.3732” N, 87° 39′ 19

## Which comes first latitude or longitude?

Handy tip: when giving a co-ordinate, latitude (north or south) always precedes longitude (east or west). Latitude and longitude are divided in degrees (°), minutes (‘) and seconds (“).

## How do we measure longitude?

The Earth rotates one full turn (360º of longitude) in one day. It therefore turns one degree of longitude in 1/360th of a day, or every four minutes. To calculate your longitude, you therefore simply need to work out the time difference between noon at your location and noon at the Prime Meridian.

## What is 0 degrees longitude called?

an imaginary line on Earth that passes north to south through the Greenwich Observatory in London, England. Sentences: The prime meridian divides Earth into the Eastern Hemisphere and the Western Hemisphere. The prime meridian is at 0° (0 degrees) longitude.

## How many lines of latitude are there in total?

Latitude is the measurement of distance north or south of the Equator. It is measured with 180 imaginary lines that form circles around the Earth east-west, parallel to the Equator. These lines are known as parallels. A circle of latitude is an imaginary ring linking all points sharing a parallel.

## What is the degree of Tropic of Cancer?

Besides the equator (0°), the North Pole (90°N) and the South Pole (90° S), there are four important parallels of latitudes– (i) Tropic of Cancer (23½° N) in the Northern Hemisphere.

## What is latitude angle?

Latitude is an angle (defined below) which ranges from 0° at the Equator to 90° (North or South) at the poles. Lines of constant latitude, or parallels, run east–west as circles parallel to the equator. Latitude is used together with longitude to specify the precise location of features on the surface of the Earth.

## How many longitudes pass the sun in one hour?

eastern and western hemispheres. In other words, the sun traverses 150 of longitudes per hour or one degree of longitude in every four minutes of time.

## How many degrees longitudes does earth cover in one hour?

15 degrees

## How many longitudes pass the Earth in one hour?

For a complete rotation on its axis, the earth passes through 360 degrees. For every one-hour time, a point on the earth moves through 15 degrees of longitude (360/24 hours).

## How long does the earth take to complete one rotation?

Earth is closer to the sun and revolves around it in about 365 days. Sentences: Earth revolves around the sun in 365 days, 5 hours, 59 minutes and 16 seconds. The time a planet takes to revolve around the sun is called a year.

## Which line is latitude and longitude?

You’ve seen lines running across maps your whole life and may not have noticed them. The lines running North to South are called “Meridians” or “lines of longitude” (Figure 2), while the lines running East to West are called “Parallels” or “lines of latitude” (Figure 3).

## Where is the line of equator?

The Equator is the invisible line that runs around the center of the Earth at 0 degrees latitude. An equator is an imaginary line around the middle of a planet or other celestial body. It is halfway between the North Pole and the South Pole, at 0 degrees latitude.

## What are examples of longitude?

An example of longitude is that New York City is at 74° degrees west and local time is 5 hours less than Greenwich mean time. Any imaginary line perpendicular to the equator and part of a great circle passing through the North Pole and South Pole. (archaic) Length.

## What are the three lines of latitude?

Important lines of latitude:

- the equator (0°)
- the Tropic of Cancer (23.5° north)
- the Tropic of Capricorn (23.5° south)
- the Arctic circle (66.5° north)
- the Antarctic circle (66.5° south)
- the North Pole (90° north)
- the South Pole (90° south)

## What is the name of parallel 23.5 s?

The Tropic of Capricorn is a parallel of latitude on the Earth, 23.5 degrees south of the equator.