Question

2. Which ordered pair is the best estimate of the solution of the system?

(Points : 1)
A. (–4, –3)
B. (–4, –4)
C. (–5, –3)
D. (–5, –4)

Answer 1

-4x + y = 14
 3x -  y = -16
       -x = -2
         x = 2
-4(2) + y = 14
   -8 + y = 14
 + 8         + 8
         y = 22
(x, y) = (2, 22)