Question

Use a graphing tool to solve the system.

{13x+6y=−30x−2y=−4


Which ordered pair is the best estimate for the solution to the system?




(0.75, −3.25)

(−1.25, 1.75)

(−2.5, 0.25)

(−2.5, 0.75)

Answer 1

Your Answer is: (−2.5, 0.75)

Answer 2

we have
13x+6y=−30------------- > 6y=-30-13x--------------- > y=(-30-13x)/6
x−2y=−4-- > 2y=x+4-------- > y=(x+4)/2
Using a graphing tool---------- > see attached figure
the solution of the system is the point (-2.625,0688)

the best estimate pair for the solution to the system is (−2.5, 0.75)