Greatest common factor and polynomial for 81m^4 - m^2 ​

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

Solve 3x-18=2y and 5x-6y=6 by elimination show work

Fill in the blank 1. a rhombus is a rectangle a) always b) sometimes c) never 2. a square is a quadrilateral a) always b) sometimes c) never 3. a trapezoid is a kite a) always b) sometimes c) never 4. a quadrilateral is a kite a) always b) sometimes c) never 5. a square is a rhombus a) always b) sometimes c) never 6. a parallelogram is a rectangle a) always b) sometimes c) never