Which equation represents a line that is perpendicular to the line represented by 2x - y = 7 ?

1) y = -1/2x + 6
2) y= 1/2x + 6
3) -2x + 6
4) y = 2x + 6

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