Below is the scatterplot for data collected on two variables. Would a least-squares regression equation be useful in describing the relationship between the variables? Why or why not? 
Definitions:
Fixed Ratio
A quantitative relationship between two or more variables where one variable is a fixed multiple of the others, often used to describe proportional relationships in finance and engineering.
Excess Goods
Products that exceed the demand in the market, often leading to surplus and potential waste.
Perfect Substitutes
Two goods that could be used in place of one another with no loss of utility to the consumer.
Utility Function
A mathematical representation of how different combinations of goods or services produce varying levels of satisfaction or utility to a consumer.
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