Refer to the information provided in Figure 5.2 below to answer the question(s) that follow. 
Figure 5.2
-Refer to Figure 5.2. If the price of a hamburger increases from $6 to $8, the price elasticity of demand equals ________. Use the midpoint formula.
Definitions:
IUPAC Name
The systematic naming of chemical compounds as recommended by the International Union of Pure and Applied Chemistry (IUPAC).
Methylhexane
A branched alkane with six carbon atoms and a methyl group, known for its various structural isomers.
Chloro
A prefix indicating the presence of a chlorine atom in an organic compound, usually attached to a carbon atom.
Dibromo
A prefix indicating the presence of two bromine atoms in a molecule, often used to describe compounds in organic chemistry.
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