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Slope Finding the Slope Classifying Lines by

Slope, Determining Parallel and Perpendicular

Lines

- Created By CEllis2
- December 2nd, 2005

LOOK Here are some important notes to help YOU

with Slopes

- The Slope of a nonvertical line is the ratio of

the vertical change (the rise) to the horizontal

change (the run). - The slope of the nonvertical line passing through

the points (x1 y1) and (x2,y2) is - m y2 y1 rise
- x2 x1 run
- When calculating the slope of a line, be careful

to subtract the coordinates in the correct order

BRAIN FOOD

rise

run

Lets See If You Can Find The Slope After All

Youve Learned

- Find the Slope of the line passing through (-3,

5) and (2, 1) - Let (x1, y1)(-3, 5) and (x2, y2) (2, 1)
- Chose the Question Mark (?) to the right that

is the correct answer. If you choose the wrong

answer it will send you to the notes page for

more reviewing. GOOD LUCK!!!

- 5/4
- 4/5
- -4/5
- -5/4

Congratulations Your Answer Was Correct!!!

- Take a look here and Ill explain why.
- m y2- y1
- x2 x1
- 1-5 Substitute Values
- 2-(-3)
- -4 Simplify
- 23
- -4 Simplify
- 5

Classifying Lines By Slopes

- A line with a positive slope rises from left to

right (m gt 0) - A line with a negative slope falls from left to

right (m lt 0) - A line with a slope of zero is horizontal (m0)
- A line with an undefined slope is vertical (m is

undefined)

- Positive Slope Negative Slope
- Zero Slope Undefined Slope

Lets See What Youve Learned

- Without Graphing tell whether the line through

the given points rises, falls, is horizontal, or

is vertical - a.) (3, -4) (1, -6)

- Falls
- Vertical
- Horizontal
- Rises

Congratulations Your Answer Is Correct! Ill Show

You Step By Step How You Got Your Answer

- m -6 (-4) -2 1 Because mgt 0, the

line rise - 1-3 -2
- DO YOU UNDERSTAND HOW I GOT THIS ANSWER? IF SO

CLICK THE ARROW FOR SOME MORE PRACTICE PROBLEMS

Lets See What Youve Learned

- Without graphing tell whether the line through

the given points rises, falls, is horizontal, or

is vertical - b.) (2, -1) (2, 5)

- Horizontal
- Falls
- Vertical
- Rises

Well It Seems To Me You Have A Hang On

Classifying Lines By Slopes

- Here Are the Steps to Solving the Last Problem

You Did.TAKE A LOOK - m 5-(-1) 6 Because m is undefined, the

line is vertical - 2-2 0
- I hope you understand. Now Click the arrow for

some more classifications of lines

Classifying Lines By Slopes

- Classify the following line
- Positive Negative Zero

Undefined

Classifying Lines By Slopes

- Classify the following line
- Positive Negative Undefined Zero

You have successfully completed this tutorial if

you have any other questions that this tutorial

didnt help you with contact your teacher shell

be glad to assist you!

Congradulations!!!

References.

- McDougal Littel Math Book
- Notes from Notebook
- Thank You
- BYE-BYE