Answer:
C. - 0.33 and inelastic
Explanation:
Using the mid point formula
Elasticity of coefficient = [Q2 - Q1]/ [Q2 + Q1]/2 ÷ [P2 - P1]/ [P2 + P1]/2
Therefore, given that
Q1 = 500
Q2 = 460
P1 = 7
P2 = 9
thus
= 460 - 500/ (460 + 500)/2 ÷ 9 - 7/(9 + 7)/ 2
= -40/480 ÷ 2/8
= - 0.08333 ÷ 0.25
= - 0.33
It is inelastic because it's less than 1. Remember that, because demand falls with increases in price, elasticities are always negative.