50 likes | 152 Views
Chapter 9.3 Equations and Absolute Values. By: Jeremy Kang 3/18/13 Period 2. Textbook Page 412 A Problem #9. 9. |7x-2| = 5 7x-2 = 5 +2 +2 7x = 7 /7 /7 x=1. 7x-2 = -5 +2 +2 7x = -3 /7 /7 x = -3/7. Textbook Page 412 B Problem #26. 26. 3|y+6| = 6
E N D
Chapter 9.3Equations and Absolute Values By: Jeremy Kang 3/18/13 Period 2
Textbook Page 412A Problem #9 9. |7x-2| = 5 7x-2 = 5 +2 +2 7x = 7 /7 /7 x=1 7x-2 = -5 +2 +2 7x = -3 /7 /7 x = -3/7
Textbook Page 412B Problem #26 26. 3|y+6| = 6 /3 /3 |y+6| = 2 y+6 = 2 -6 -6 y = -4 y+6 = -2 -6 -6 y= -8 {-4,-8}
Textbook Page 412C Problem (Challenge) #36 36. |3x| = |4x-1| 3x = 4x-1 -4x -4x -x = -1 /- /- x = 1 3x = -(4x-1) 3x = -4x+1 +4x +4x 7x = 1 /7 /7 x = 1/7 {1,1/7}