Use the following to answer questions : 
-(Table: Competitive Market for Good Z) Look at the table Competitive Market for Good Z. If the demand curve for good Z is linear, it can be expressed as:
Definitions:
Analytical Skills
The ability to collect and analyze information, solve problems, and make decisions based on the available data.
Assertion
A confident and forceful statement of fact or belief, presenting one's stance or viewpoint unequivocally.
Assumption
A thing that is accepted as true or as certain to happen, without proof.
Reason
The power of the mind to think, understand, and form judgments by a process of logic.
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