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The Coordinate Plane By: Stan Blackman Jay High School Lesson for Glencoe Algebra I Math Section 4-1 PowerPoint Presentation

The Coordinate Plane By: Stan Blackman Jay High School Lesson for Glencoe Algebra I Math Section 4-1

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By: Stan Blackman

Jay High School

Lesson for Glencoe Algebra I Math

Section 4-1

Algebra I Glencoe Mathematics 2004

The McGraw Hill Companies Inc.

Axes - two perpendicular number lines used for locating points

Origin – the intersection of the two axes

Y-axis – the vertical number line

X-axis – the hoizontal number line

The four quadrants of the coordinate plane.

Y-axis

Quadrant

I

Quadrant II

X-axis

Quadrant

IV

Quadrant III

Direction of Movement for the X-Coordinate

Y-axis

If the x-coordinate is positive move this way

If the x-coordinate is negative move this way

X-axis

Direction of movement for the Y-coordinate

Y-axis

If the y-coordinate is positive move this way

If the y-coordinate is negative move this way

X-axis

How To Plot a Point on the Coordinate Plane

Y-axis

(4,4)

Next move on the Y-axis

X-axis

(-3,-1)

First move out on the

X-axis

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