suppose you want to add a sprinkler system, and the location of one section of the sprinkler line can be described by the equation

y = - 1/2x - 4

complete the following table:

x y (x,y)
? -1 ?
-2 ? ?
? -4 ?
2 ? ?
8 ? ?

my answers:
x y (x,y)
-1.5 -1 (-1.5,-1)
-2 -3 (-2,-3)
12 -4 (12,-4)
2 -5 (2,-5)
8 -8 (8,-8)

recheck the first and third.

If all are correct, they should graph a straight line. You can check that yourself.