   Chapter 10.2, Problem 12E Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085

Solutions

Chapter
Section Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085
Textbook Problem

Find the slopes of the lines containing:a) 3 ,   - 5 and - 1 ,   2 b) - 2 ,   - 3 and - 5 ,   - 7 c) 2 2 ,   - 3 6 and 3 2 ,   5 6 d) 2 ,   7 and 2 ,   3 e) a ,   0 and a + b ,   c f) a ,   b and - b ,   - a

To determine

(a)

To find:

The slopes of the line containing 3, -5 and -1, 2.

Explanation

The slope of the line that contains the points x1,y1 and x2,y2 is given by

m=y2-y1x2-x1 for x2x1

The given points are 3, -5 and -1, 2

To determine

(b)

To find:

The slopes of the line containing -2, -3 and -5, -7.

To determine

(c)

To find:

The slopes of the line containing 22, -36 and 32, 56.

To determine

(d)

To find:

The slopes of the line containing 2, 7 and 2, 3.

To determine

(e)

To find:

The slopes of the line containing a, 0 and a+b, c.

To determine

(f)

To find:

The slopes of the line containing a, b and -b, -a.

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