|
Question 202528This question is from textbook Geometry
: find vector AB in problem 12 as an ordred pair. problem 12 Given points A (-5,8) and B (3,4)
This question is from textbook Geometry
Answer by ilana(307)   (Show Source):
You can put this solution on YOUR website! Plot the two points on a graph. Then make an arrow going from A to B. The arrow should go southeast on the graph. You want to represent that vector with just an ordered pair. That means you want to be able to tell someone one ordered pair, and have them draw that same arrow. The way to do this is to make the arrow start at the origin (0,0). So look at how much it goes to the right and how much it goes down. It goes to the right from -5 to 3 and it goes down from 8 to 4. So it goes to the right 8 units (positive 8 horizontally) and down 4 units (negative 4 vertically). So as an ordered pair this vector is <8,-4>. (I believe these pointy brackets are usually used instead of parentheses for vectors, but it's possible you've learned to use a different notation.)
|
|
|
| |
