Practice Questions: 1.  Graph the following lines:a) y = 2x - 1 b) y = -1/2x + 2 c) y = 2/3x - 3 d) y = 4 e) y = -3x 2.  State the slope and the y-intercept for each linea) y = 3x + 1 b) y = 1/2x - 2 c) y = -2x + 3 3.  Finding the equation of a given line   4.  You want to send flowers to your friend for her birthday.  FTD charges $12 for delivery, and $0.50 for each flower.  1-800-Flowers charges $15 for delivery and $0.25 for each flower.a)  Your friend is 18, and you want to send 18 flowers.  Which company should you choose? b)  How many flowers do you have to send for both companies to charge the same?