# 3-3 Notes

### 3-3 The Coordinate Plane

► Standard (P5) I will be able to plot points in the coordinate plane ► Fold and cut ordered pair and coordinate plane foldable, and staple to 3-3 in your foldable.

x: The first coordinate in the ordered pair. Gives the location of the point in the horizontal (left to right) direction y: The second coordinate in the ordered pair. Gives the location of the point in the vertical (up and down) direction.

Remember: x comes before and in the ordered pair y in the alphabet

► On Front: II (-,+) III (-,-) I (+,+) IV (+,-)

### Inside Foldable

•The point where the axis cross is called the __________and its coordinates are ( , ) Origin (0,0) •Find the point on the x axis, label it A. Its coordinates are ( , ) (-4,0) •y axis- Label it B. It’s at ( , ) (0,9) •Quadrant I- Label it C. It’s at ( , ) (6,5) •Quadrant II- Label it D. It’s at ( , ) (-3,3) •Quadrant III- Label it E. It’s at ( , ) ( -9, -2) •Quadrant IV-Label it F. It’s at ( ,) (2, -5) Y-axis X-axis

► Plot G ( 2, 3) ► Plot H (-5, -3) ► How is A( 2, -5) different than B(-5 , 2)?

► Name a point that would be on the x-axis ► Name a point that would be on the y-axis

► Assignment ► Page 114-115 #10-30 EOE, #37-42, #44 48, #51-52 **37-42, 52 write in sentence ► Be sure to staple the 2 foldables into your Chapter 3 foldable, Section 3-3 page.