3.) Graph the following lines. Each line will go through a suspect except one. The only suspect left is the murderer.
y = 1/3 x - 17
y = -4/7 x - 6
y=-1/7 x + 7
y = 2/7 x - 2
y = 2/3 x + 12
y = 1/2 x - 11
y = -1/10 x + 15
y = x + 4