Verify that parallelogram ABCD with vertices A (-5, -1), B (−9, 6), C(-1, 5), D (3, -2) is a rhombus by showing that it is a parallelogram with perpendicular diagonals. Enter your answer and show all the steps that you use to solve this problem in the space provided.

Create a graph for the demand for starfish using the following data table: quantity/price of starfish quantity (x axis) of starfish in dozens price (y axis) of starfish per dozen 0 8 2 6 3 5 5 2 7 1 9 0 is the relationship between the price of starfish and the quantity demanded inverse or direct? why? how many dozens of starfish are demanded at a price of five? calculate the slope of the line between the prices of 6 (quantity of 2) and 1 (quantity of 7) per dozen. describe the line when there is a direct relationship between price and quantity.