point
elasticity
formula
arc
elasticity
formula
Demand
Curve
Α
intercept
16
-
slope
2
.
Demand
Curve
Β
intercept
17
-
slope
0
.
75
Prices
P
1
8
.
P
2
6
.
0
.
7
0
.
778
D
Α
D
Β
0
4
8
12
16
20
Q
Α
1
Q
Α
2
Q
Β
1
Q
Β
2
Quantity
0
2
4
6
8
10
12
14
16
18
20
22
P
1
-
P
2
-
Price
D
Α
D
Β
E
d
0
.
778
0
.
7
Slope
-
2
.
-
0
.
75
