Determine if the solution set for the system of equations shown is the empty set contains one point or is infinite
x+y=4
x-y=0
od
1 solution
infinite

Areflection of shape i across the y-axis, followed by a , and then a translation left 6 units and down 4 units confirms congruence between shape i and shape ii. alternatively, a of shape ii about the origin, followed by a reflection across the y-axis, and then a translation right 4 units and up 6 units confirms congruence between shape ii and shape i.