Question

Use a graphing tool to solve the system.

{13x+6y=−30
x−2y=−4
Which ordered pair is the best estimate for the solution to the system? (−2.5, 0.75) (−1.25, 1.75) (0.75, −3.25) (−2.5, 0.25)

Answer 1

hope this helps :)

Answer 2

13x+6y=−30
x−2y=−4

This means that .............6y = -30 -13x..............y = -13x/6 -5 (a)
(b) x+4 = 2y ................y = x/2 +2

The Solution is (-2.625,0.688) so the best estimate is (-2.5 , 0.75)