Question

Which of the following ordered pairs represents the solution to the system given below?

2x + y = 20
4x − 2y = 40

(10, 0)
(0, 10)
(4, 2)
(10, −10)

Answer 1

you can plug in the points to see if they work or not

Answer 2

the easiest way as preciously mentioned would be to plug in the points to the corresponding spots
Example: since coordinates are in (x,y)
in (10,0) your x=10 and y=0
so it would be 2(10)+0=20
4(10)-2(0)=40