C1: Slope

Slope of a line
1. Slope= rise/run
2. the slope of a line segment on a coordinate grid is the measure of its rate of change: rate of change= change in y/change in x
3. count the units to determine the rise and run of a slope
Vocab
1. rise
  1. the vertical distance between 2 points
2. run
  1. the horizontal distance between 2 points
3. rate of change
  1. the change in one quantity with respect to the change in another quantity
4. slope
  1. a measure of how one quantity changes with respect to the other it can be determined by calculating rise/run
5. negative reciprocals
  1. two numbers whose product equals -1
types of lines and their value
1. lines sloping down to the left
  1. have a negative slope
2. lines sloping up to the right
  1. has a positive slope
3. horizontal lines
  1. slope=0
4. vertical lines
  1. slope is undefined
5. parallel lines
  1. parallel lines have an equal slope to each other
6. perpendicular lines
  1. if you multiply the slopes of two perpendicular lines it will equal -1 because they are negative reciprocals of each other
7. using slope to id a polygon
  1. *to check whether a polygon is a rectangle determine whether two of the intersecting sides are perpendicular (slopes should be negative reciprocals)
equations used to find slope
1. y=mx+b
2. rise/run
3. rate of change= change in y/change in x
4. y2-y1/x2-x1

Resource summary

	Created by ejmwatergirl almost 11 years ago