Sketch the graph of the quadratic function. Give the vertex and axis of symmetry.f(x) = x2 + 2x - 3
A. vertex (- 1, - 4); axis of symmetry x = - 1
B. vertex (1, - 4); axis of symmetry x = 1
C. vertex (1, - 4); axis of symmetry x = 1
D. vertex (- 1, - 4); axis of symmetry x = - 1
Answer: D
Mathematics
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A. 
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D. 
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