What characteristics can be seen in the graphs for a system that have one solution, no solution or infinitely many solutions?

What is the rule for reflection across the y axis

Amonument at a park is in the shape of a right square pyramid. a diagram of the pyramid and its net are shown. what is the surface area of the monument? enter the answer in the box. m²

Agraph of a trapezoid can have diagonals with slopes that are negative reciprocals and two pairs of adjacent sides that are congruent, true or false, and why