Identify the Vertex, Axis of Symmetry, and Intercepts for the Graph

question 228

Multiple Choice

Identify the vertex, axis of symmetry, and intercepts for the graph of the function.
- $$y = - x ^ { 2 } - 2 x + 8$$

• A) Vertex at \(( - 1,9 )\); axis: \(y = 9 ; x\)-intercepts: \(( - 4,0 )\) and \(( 2,0 ) ; y\)-intercept: \(( 0,8 )\)
• B) Vertex at \(( 1,5 )\); axis: \(y = 5 ; x\)-intercepts: none; \(y\)-intercept: \(( 2,0 )\)
• C) Vertex at \(( 1,5 )\); axis: \(x = 1 ; x\)-intercepts: none; \(y\)-intercept: \(( 2,0 )\)
• D) Vertex at \(( - 1,9 )\); axis: \(x = - 1 ; x\)-intercepts: \(( - 4,0 )\) and \(( 2,0 ) ; y\)-intercept: \(( 0,8 )\)

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