The questions and answers written out are attached to this note. Section 1 1. y = -2x + 5 2.  y = -2/3x - 2 3.  m = -2/5 b = 2 4.  m = 2 b = 3 5.  m = -2 6.  C 7.  B & D 8.  b = 2 9.  x = 4/3 10.  See answer sheet 11.  y = -3x + 4 12.  Yes 13.  Slope is 0 14.  Slope is undefined 15.  Slope is 0   Section 2 1.  a) x = 12 b) x = 10 c) x = -1 d) x = 1 e) x = 55/19 2.  a) Blockbuster = 25 + 4x Rogers = 50 + 2x b)  BB = 65 Rogers = 70 Blockbuster is cheaper c) x = 12.5, so you'd have to rent 13 DVDs 3.  See answer sheet 4.  a) b = 4 x = -2 b) b = 3 x = 3/2 c) b = 3 x = -3/2 5. a) y = 4x + 3 b) y = -1/2x - 2 c) y = 4x - 3