Beginning Algebra, 11th Edition

EXERCISES 85– 86

In Exercises 85 and 86, two graphing calculator views of the same line are shown. Use

the displays at the bottom of the screen to write an equation of the form for

each line.

85.

86.

y=mx+b

TECHNOLOGY INSIGHTS

222 CHAPTER 3 Linear Equations and Inequalities in Two Variables; Functions

–10

10

–10 10

–10

10

–10 10

–10

10

–10 10

–10

10

–10 10

Solve each inequality, and graph the solution set on a number line. See Section 2.8.

87. 
    
    
    
    88. 
        
    
    
    
    


88. 5 - 3 x...- 10 90.-x 60

1

2

3 x+ 8 7- 1 x- 362

PREVIEW EXERCISES

Graph each line, using the given information or equation.

1. 
   
   
   
   2. 
      
   
   
   
   


2. y-intercept 4.


3. passes through 6.Undefined slope, passes through


4. 
   
   
   
   8. 
      
   
   
   
   


5. 
   
   
   
   10. y-intercept
   
   
   
   


6. 
   
   
   
   12. passes through
   
   
   
   


7. , passes through 14.


8. 
   
   
   
   16. 
       
   
   
   
   

17.x+ 4 = 0 18.x- 3 y= 6

y=-x+ 6 4 x= 3 y- 24

m= (^0) A0,^32 B x+ 5 y= 0
5 x+ 2 y= 10 m=- 34 , 1 4, - 42
8 x= 6 y+ 24 m=1, 1 0, - 42
x- 4 y= 0 y- 4 =- 9
m=- 32 , 1 3, - 42 1 - 3.5, 0 2
m=1, 1 0, - 22 y=- 2 x+ 6
x- 2 y=- 4 2 x+ 3 y= 12
SUMMARY EXERCISES on Linear Equations and Graphs
http://www.ebook777.com
http://www.ebook777.com