Vectors

Vectors

1. What are Vectors?

   • Vectors is a way of describing how to get from one point to another
   • They are usually written as two numbers and look like a fraction
     • The top number signifies how far left or right to go the bottom number is how far up or down
       • Top number positive goes right, negative goes left
       • Bottom number positive goes up, negative goes down

2. Magnitude of Vectors

   • Draw a right angled triangle using the line
   • Then use Pythagoras to work out the size of the vector

3. Adding Vectors

   • When you get two or more vectors that you need to add all you do is add the top parts together and the same with the bottom parts
   • Subtracting Vectors
     • To subtract a vector all you need to do is add the negative of the vector

4. Multiplying Vectors

   • Multiply the top and the bottom of the vector by whatever number is provided

5. Vectors in Geometery

   • Describing the route of a vector to a point
   • if it goes the opposite way in which the arrow is pointing it is minus and if it is going in that direction it is positive