Answer:
E = 1.09
Step-by-step explanation:
Elasticity measures the sensitivity of demand with changes in income.
Elasticity of Income has the formula:
[Change in Demand/Demand]/[Change in Income/Income]
So, now, we have:
D_0 = 2
D_1 = 1
I_0 = 8
I_1 = 15
Now, Elasticity (E) is:
E = [(1-2)/(1+2)]/[(15-8)/(15+8)]
E = [1/3]/[7/23]
E = 1.09