How can graphing be applied to solving systems of nonlinear equations?
how can constraints be used to model a real-world situation?

Which addition property is being illustrated below? (type commutative or associative) (6 + 7) + 1 = 6 + (7 + 1)

The length of triangle base is 26. a line, which is parallel to the base divides the triangle into two equal area parts. find the length of the segment between triangle legs.

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15