Download presentation

Presentation is loading. Please wait.

Published byCalvin Blake Modified over 2 years ago

1
2-4: THE COORDINATE PLANE

2
2-4: The Coordinate Plane C OORDINATE P LANE : A grid used to represent placement in two dimensions (x and y). Also called a C ARTESIAN P LANE. Vertical number line is called the y-axis Horizontal number line is called the x-axis The point of intersection of the two axis is called the origin

3
2-4: The Coordinate Plane The Coordinate plane is broken up into four quadrants. They start in the upper- right and count counter-clockwise. Quad 1Quad 2 Quad 4 Quad 3

4
2-4: The Coordinate Plane O RDERED P AIR : A point on the coordinate plane, consisting of an x-coordinate and a y-coordinate.

5
2-4: The Coordinate Plane The figure below shows the graph of the ordered pair (4, 3). The first part, 4, is called the x-coordinate. It tells how many points to the left or right the point lies. (4, 3)

6
2-4: The Coordinate Plane The second part, 3, is called the y-coordinate. It tells how many points up or down the point lies. (4, 3)

7
2-4: The Coordinate Plane Example: Graph point A at (2, -3) Identify the coordinates at B and C. A (2,-3) B C B is at (-2, 5); C is at (0, -2)

8
2-4: The Coordinate Plane Horizontal and vertical lines have special characteristics. If a vertical line passes through (3, 4), then it contains all the points where x = 3. If a horizontal line passes through (-4, -2), then it contains all the points where y = -2. T HEOREM 2-4: If a and b are real numbers, a vertical line contains all points (x, y) such that x = a, and a horizontal line contains all points (x, y) such that y = b.

9
2-4: The Coordinate Plane T HEOREM 2-4: If a and b are real numbers, a vertical line contains all points (x, y) such that x = a, and a horizontal line contains all points (x, y) such that y = b. What??? Vertical lines are always written as x = # Horizontal lines are always written as y = # How am I supposed to remember that? Take a v (for vertical), and turn it upside-down Take a h (for horizontal), and turn it upside down vh

10
2-4: The Coordinate Plane Assignment Worksheet #2-4 Tomorrow Quiz on Sections 2-1 through 2-4 Next Week Monday: 2-5 (Midpoints) Tuesday: (Keystone Review-ish) Wednesday: Chapter 2 Preview Thursday: Chapter 2 Review Friday: Chapter 2 Test

Similar presentations

Presentation is loading. Please wait....

OK

In mathematics, we use a grid to locate points..

In mathematics, we use a grid to locate points..

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on solar system for class 6 Ppt on new technology in computer science Ppt on standardization and grading in marketing Ppt on internet as a post office Ppt on abstract artwork Ppt on value of pie in math Download ppt on turbo generator construction Ppt on regional political parties in india Ppt on pin diode rf Ppt on csr as per companies act 2013