In this lesson our instructor talks about graphing in the coordinate plane. She talks about coordinate plane, y-axis, x-axis, quadrants origin, ordered pair, x-coordinate, and y-coordinate. She talks about labeling vocabulary and graphing points on a coordinate plane. Four extra examples round up this lesson.
Coordinate Plane: grid formed
by intersection of two number lines
y-axis: a vertical number
x-axis: a horizontal number
Quadrants: the axes divide the
plane into four quadrants
Origin: where the axes
Ordered Pair: (x,y), gives the
coordinates of a point‘s location
x-coordinate: the position to
the right or left of the y-axis (x, y)
y-coordinate: the position
above or below the x-axis (x, y)
Remember that in an ordered
pair, the x term always come before the y: (x, y). An easy way to
remember this is that the letters are in alphabetical order.
Graphing in the Coordinate Plane
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.