pre-algebra 5-5 coordinate geometry 6/1/2010 slope#27 today’s plan: -intro to slope video -slope...

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Pre-Algebra 5-5 Coordinate Geometry 6/1/2010 Slope #27 Today’s Plan: -Intro to slope video -Slope practice LT: I will identify the slope of a line. LT: I will identify the slope of a line. Entry Task: What is the slope of a line? What did you learn about slope in Science? *TURN IN TEXTBOOKS

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Pre-Algebra 5-5 Coordinate Geometry 6/1/2010 Slope#27 Today’s Plan: -Intro to slope video -Slope practice LT: I will identify the slope of a line. Video

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Page 1: Pre-Algebra 5-5 Coordinate Geometry 6/1/2010 Slope#27 Today’s Plan: -Intro to slope video -Slope practice LT: I will identify the slope of a line. Entry

Pre-Algebra

5-5 Coordinate Geometry 6/1/2010 Slope #27

Today’s Plan:-Intro to slope video-Slope practice

LT: I will identify the slope of a line.

LT: I will identify the slope of a line.

Entry Task:What is the slope of a line? What did you learn about slope in Science?

*TURN IN TEXTBOOKS

Page 2: Pre-Algebra 5-5 Coordinate Geometry 6/1/2010 Slope#27 Today’s Plan: -Intro to slope video -Slope practice LT: I will identify the slope of a line. Entry

Pre-Algebra

5-5 Coordinate Geometry

Slope is a number that describes how steep a line is.

Page 3: Pre-Algebra 5-5 Coordinate Geometry 6/1/2010 Slope#27 Today’s Plan: -Intro to slope video -Slope practice LT: I will identify the slope of a line. Entry

Pre-Algebra

5-5 Coordinate Geometry 6/1/2010 Slope #27

Today’s Plan:-Intro to slope video-Slope practice

LT: I will identify the slope of a line.

LT: I will identify the slope of a line.

Video

Page 4: Pre-Algebra 5-5 Coordinate Geometry 6/1/2010 Slope#27 Today’s Plan: -Intro to slope video -Slope practice LT: I will identify the slope of a line. Entry

Pre-Algebra

5-5 Coordinate Geometry

The slope of a horizontal line is 0. The slope of a vertical line is undefined.

slope = vertical change horizontal change = rise

run

slope = rise run

Page 5: Pre-Algebra 5-5 Coordinate Geometry 6/1/2010 Slope#27 Today’s Plan: -Intro to slope video -Slope practice LT: I will identify the slope of a line. Entry

Pre-Algebra

5-5 Coordinate Geometry 6/1/2010 Slope #27

Today’s Plan:-Intro to slope video-Slope practice

LT: I will identify the slope of a line.

Slope is a number that describes how steep a line is. slope = rise

run

++

--

00

Undefined

Page 6: Pre-Algebra 5-5 Coordinate Geometry 6/1/2010 Slope#27 Today’s Plan: -Intro to slope video -Slope practice LT: I will identify the slope of a line. Entry

Pre-Algebra

5-5 Coordinate GeometryAdditional Example 1A: Finding the Slope of a Line

Determine if the slope of each line is positive, negative, 0, or undefined. Then find the slope of each line.

A. XYpositive slope;slope of XY = =

–5–4

54

Page 7: Pre-Algebra 5-5 Coordinate Geometry 6/1/2010 Slope#27 Today’s Plan: -Intro to slope video -Slope practice LT: I will identify the slope of a line. Entry

Pre-Algebra

5-5 Coordinate Geometry

Determine if the slope of each line is positive, negative, 0, or undefined. Then find the slope of each line.

B. ZAnegative slope;slope of ZA = = ––1

2 12

Additional Example 1B: Finding the Slope of a Line

Page 8: Pre-Algebra 5-5 Coordinate Geometry 6/1/2010 Slope#27 Today’s Plan: -Intro to slope video -Slope practice LT: I will identify the slope of a line. Entry

Pre-Algebra

5-5 Coordinate Geometry

Determine if the slope of each line is positive, negative, 0, or undefined. Then find the slope of each line.

C. BCslope of BC is undefined

Additional Example 1C: Finding the Slope of a Line

Page 9: Pre-Algebra 5-5 Coordinate Geometry 6/1/2010 Slope#27 Today’s Plan: -Intro to slope video -Slope practice LT: I will identify the slope of a line. Entry

Pre-Algebra

5-5 Coordinate Geometry

Determine if the slope of each line is positive, negative, 0, or undefined. Then find the slope of each line.

D. DMslope of DM = 0

Additional Example 1D: Finding the Slope of a Line

Page 10: Pre-Algebra 5-5 Coordinate Geometry 6/1/2010 Slope#27 Today’s Plan: -Intro to slope video -Slope practice LT: I will identify the slope of a line. Entry

Pre-Algebra

5-5 Coordinate Geometry

Try This: Example 1ADetermine if the slope of each line is positive, negative, 0, or undefined. Then find the slope of each line.

A. AB A

C

B

D

FE

HG

positive slope;slope of AB = 1

8

Page 11: Pre-Algebra 5-5 Coordinate Geometry 6/1/2010 Slope#27 Today’s Plan: -Intro to slope video -Slope practice LT: I will identify the slope of a line. Entry

Pre-Algebra

5-5 Coordinate Geometry

B. CDslope of CD is undefined

Try This: Example 1BDetermine if the slope of each line is positive, negative, 0, or undefined. Then find the slope of each line.

A

C

B

D

FE

HG

Page 12: Pre-Algebra 5-5 Coordinate Geometry 6/1/2010 Slope#27 Today’s Plan: -Intro to slope video -Slope practice LT: I will identify the slope of a line. Entry

Pre-Algebra

5-5 Coordinate Geometry

C. EFslope of EF = 0

Try This: Example 1CDetermine if the slope of each line is positive, negative, 0, or undefined. Then find the slope of each line.

A

C

B

D

FE

HG

Page 13: Pre-Algebra 5-5 Coordinate Geometry 6/1/2010 Slope#27 Today’s Plan: -Intro to slope video -Slope practice LT: I will identify the slope of a line. Entry

Pre-Algebra

5-5 Coordinate Geometry

D. GH

Try This: Example 1DDetermine if the slope of each line is positive, negative, 0, or undefined. Then find the slope of each line.

A

C

B

D

FE

HG

negative slope;slope of GH = = ––1

3 13