Decide Whether the Pair of Lines Is Parallel, Perpendicular, or Neither

question 69

Multiple Choice

Decide whether the pair of lines is parallel, perpendicular, or neither.
-3x - 6y = 7 18x + 9y = -7

• A) parallel
• B) perpendicular
• C) neither

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Definitions:

Degrees of Freedom

The total number of independent pieces of information that went into the estimation of a parameter or the calculation of a statistic.

Chi-Squared Table Value

A value derived from the chi-squared distribution used in statistical tests to determine the significance of observed data.

Test Statistic

A calculated value from sample data used to make decisions about a hypothesis, indicating whether to reject the null hypothesis.

Expected Frequency

The anticipated number of times an event is predicted to happen within a specific time period, based on probability models.