Solve the System of Equations by the Elimination Method

question 9

Multiple Choice

Solve the system of equations by the elimination method.
-x - 3y = -5 4x - 4y = 12

• A) (7, 4)
• B) (6, 5)
• C) no solution
• D) (-7, 5)

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Definitions:

Representativeness Heuristic

The tendency to overestimate the likelihood that a target is part of a category if the person has features that seem representative of that category.

Availability Heuristic

A mental shortcut that relies on immediate examples that come to a person's mind when evaluating a specific topic, concept, method, or decision.

Halo Effect

A cognitive bias where a positive impression in one area influences a person's perception in other areas.

Bottom-up Processing

A way of processing information where perception starts with an analysis of the basic elements and builds up to a complete perception.