__  1.  a horizontal line   A.  (2,7) and (1,1) are on this line  __  2.  a vertical line   B.  has a gradient of 2  __  3.  y=2x+3   C.  has a gradient of 5, and yintercept of (0,3)  __  4.  y=4x+2   D.  for a run of 1, drops 4  __  5.  y=2x+1   E.  has a gradient of 3 and yintercept of (0,4)  __  6.  y=3x+4   F.  (2,2) and (5,5) are on this line  __  7.  y=4x+2   G.  has a gradient of 0  __  8.  y=5x+3   H.  has an undefined gradient  __  9.  y=72x   I.  for a run of 1, rises 4  __  10.  y=x   J.  (1,5) and (3,1) are on this line 
