Answer:
<h3>a. Give an example for which Arial's claim is true.</h3>If linear relations have equal coefficient about the independent variable, then those linear relations are parallel. For example, and
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Notice that the coefficient of the dependent variable must be also equal, otherwise it would change the slope of the expression and they wouldn't be parallel.
<h3>b. Give an example for which Arial's claim is false. </h3>The statement is not false.
<h3>c. Suggest an improvement to Arial's claim.</h3>An improvemente would be that the constant term no need to be equal too, between linear relations, because they can be at "differecent heights", sort of speak.