Graph the quadratic function using its vertex, axis of symmetry, and intercepts.f(x) = x2 + 2x - 8
A. vertex (1, -9)
intercepts (-2, 0), (4, 0), (0, -8)
B. vertex (-1, -9)
intercepts (2, 0), (- 4, 0), (0, -8)
C. vertex (1, 9)
intercepts (-2, 0), (4, 0), (0, 8)
D. vertex (-1, 9)
intercepts (2, 0), (- 4, 0), (0, 8)
Answer: B
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