Find the Vertex and Axis of Symmetry of the Graph $( - 2,9 )$

question 57

Multiple Choice

Find the vertex and axis of symmetry of the graph of the function.
-f(x) =x²-4x-5

• A) vertex \(( - 2,9 )\) intercepts \(( - 5,0 ) , ( 1,0 ) , ( 0,5 )\)
• B) vertex \(( 2 , - 9 )\) intercepts \(( 5,0 ) , ( - 1,0 ) , ( 0 , - 5 )\)
• C) vertex \(( 2,9 )\) intercepts \(( 5,0 ) , ( - 1,0 ) , ( 0,5 )\)
• D) vertex \(( - 2 , - 9 )\) intercepts \(( - 5,0 ) , ( 1,0 ) , ( 0 , - 5 )\)

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Definitions:

Critical Value

A point on the scale of the test statistic beyond which we reject the null hypothesis, depending on the level of significance.

Independent Variables

Variables in an experiment or model that are manipulated or categorized to observe their effects on dependent variables.

Observations

The act of recording or noting a fact or occurrence for some scientific or analytical purpose.

Adjusted Coefficient

A modified version of a coefficient in statistical models that accounts for certain factors or variables to improve the model's accuracy or interpretability.