1
Axes
x-axis is horizontal, y-axis is vertical. They meet at the origin (0, 0).
y
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โโโโโโ+โโโโ x
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0Coordinate Plane
๐ Study ยท Coordinate Plane
Coordinate Plane
A coordinate plane has two axes (x and y) crossing at the origin.
๐ฏ What you'll learn
- โPlot points (x, y)
- โRead points off a grid
- โKnow x-axis vs y-axis
2
Plot a point
Point (3, 5) means go right 3, then up 5.
(3, 5)
3
Quadrants
The plane has 4 quadrants. Top-right = both positive. Bottom-left = both negative.
Q1 Q2 Q3 Q4
4
Distance
Distance between points uses the Pythagorean theorem.
โ(ฮxยฒ + ฮyยฒ)
5
Plotting graphs
Connect points to draw a line or shape on a grid.
(0,0)โ(3,2)โ(5,5)