If Adding Two Linear Equations Gives $x = 5$ And Subtracting Them Gives

question 91

Multiple Choice

If adding two linear equations gives $x = 5$ and subtracting them gives $y = 5$ , then the graphs of those equations are:

• A)perpendicular
• B) equal
• C) parallel
• D) not parallel
• E) none of these

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Definitions:

Coincidence

The occurrence of two or more events at the same time by chance, without a causal connection between them.

Mental Alertness

Mental alertness is the state of being fully attentive, aware, and responsive to the surrounding environment or current tasks.

Cigarette Smoking

The act of inhaling and exhaling the smoke of tobacco or a drug.

Experiment

An experimental method conducted to explore a new finding, verify a theory, or prove an established truth.