Slope Finding

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Slope

Text of Slope Finding

• AL14.4.notebook

1

October14,2010

Oct711:36AM

It rises from left to right It falls from left to right

It's a horizontal lineIt's a vertical line

Classifying Slope: The four major types are,

• AL14.4.notebook

2

October14,2010

Oct2512:21PM

NegativeSlope:

PositiveSlope:

Slopeofahorizontalline

Slopeofaverticalline

ZeroUndefined

It falls

It rises

L1

L2

• AL14.4.notebook

3

October14,2010

Oct2512:08PM

1. 2. 3.

• AL14.4.notebook

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October14,2010

Oct2512:10PM

Positive, negative, zero or undefined?

4. 5. 6.

• AL14.4.notebook

5

October14,2010

Oct2611:47AM

verticalline

staysconstant

itfalls

itrises

ClassificationofLinesbySlope:

PositiveSlope:

NegativeSlope:

ZeroSlope:

UndefinedSlope:(noslope)

• AL14.4.notebook

6

October14,2010

Oct62:18PM

When you have the line already graphed, count the "rise over run"

When you don't have a graph, but 2 points instead, use the "Slope Formula"But it really doesn't matter whether you do it graphically or algebraically because it is still the same slope either

way

There are two methods you can use to find the slope of a line: Algebraically or Graphically

• AL14.4.notebook

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October14,2010

Oct131:16PM

Algebraically or Graphically ?????????

(3, 4) (-5, 0)

Find the slope of the line that passes through the points:

Algebraically(use the formula)

• AL14.4.notebook

8

October14,2010

Oct131:16PM

Algebraically or Graphically ?????????

Find the slope of the line:

Graphically(count the rise over run)

• AL14.4.notebook

9

October14,2010

Oct2512:10PM

Use both methods: Algebraically

Finding the rate of change is the same as finding the slope:

• AL14.4.notebook

10

October14,2010

Oct2512:10PM

Use both methods

Finding the rate of change is the same as finding the slope:

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