Decide Whether or Not the Equation Has a Circle as Its

question 283

Multiple Choice

Decide whether or not the equation has a circle as its graph. If it does not, describe the graph.
- $$x ^ { 2 } + y ^ { 2 } + 6 x - 18 y + 90 = 0$$

• A) no; the graph is the point \(( 3 , - 9 )\)
• B) no; the graph is the point \(( - 3,9 )\)
• C) no; the graph is nonexistent
• D) yes

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Definitions:

Statistical Procedure

A method or technique used for collecting, analyzing, interpreting, and presenting data.

T Value

A statistic calculated in a T-test that determines the significance of the difference between two groups' means.

Test Statistic

A value calculated from sample data during hypothesis testing. It is used to decide whether to reject the null hypothesis.

Significance Level

The probability of rejecting the null hypothesis when it is true; a threshold for determining whether a result is statistically significant.