(6,-7)
(2,1)
(-4,13)
Step-by-step explanation:
we have
-----> equation A
----> equation B
Multiply the equation A by 3 both sides
isolate the variable 3y
-----> equation C
equation B and equation C are equal
That means -----> is the same line
so
The system has infinity solutions
Remember that
If a ordered pair is a solution of the line, then the ordered pair must satisfy the equation of the line
Verify each ordered pair
1) (6,-7)
substitute the value of x and the value of y in the linear equation
---> is true
so
The ordered pair is a solution of the system of equations
2) (2,1)
substitute the value of x and the value of y in the linear equation
---> is true
so
The ordered pair is a solution of the system of equations
3) (-2,-9)
substitute the value of x and the value of y in the linear equation
---> is not true
so
The ordered pair is not a solution of the system of equations
4) (-4,13)
substitute the value of x and the value of y in the linear equation
---> is true
so
The ordered pair is a solution of the system of equations