3. Examine the tables below. One table represents a function, and one table does not. Determine which table represents a function. How do you know?
a.
X
2
4
6
8
10
12
14
-4
0
4
8
12
16
20
b.
X
2
2
6
8
10
12
12
у
-2
0
2
6
8
12
14

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.