Solve the System by the Substitution Method $x ^ { 2 } = y ^ { 2 } + 39$

question 208

Multiple Choice

Solve the system by the substitution method.
- $x ^ { 2 } = y ^ { 2 } + 39$ $x - y = 3$

• A) \(\{ ( 8,5 ) \}\)
• B) \(\{ ( 8 , - 5 ) \}\)
• C) \(\{ ( - 8,5 ) \}\)
• D) \(\{ ( - 8 , - 5 ) \}\)

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Definitions:

Research Hypotheses

Statements made for a study that predicts a relationship between variables, to be tested through research.

Sampling Error

The discrepancy between a sample statistic and its corresponding population parameter, arising purely by chance because the sample is not a perfect representation of the population.

Nondirectional Research Hypothesis

A hypothesis suggesting a correlation between variables without defining the nature of their interaction.

Generalizability

The extent to which the findings from a study can be applied to a wider population or different contexts.