Determine if the solution set for the system of equations shown is the empty set, contains one point or is infinite.
x + 2y = 0
2x + 4y = 0

one solution
no solution
coincident

solve the linear system.
x + y = -3
y = 2x

(-1, -2)
no solution
coincident

7x + 2y = 4
y = x + 1
solve the system of equations.

(1/3, 4/3)
(2/9, 11/9)
no solution