Graph the function using its vertex, axis of symmetry, and intercepts.f(x) = x2 + 2x - 3
A. vertex (-1, -4)
intercepts (1, 0), (- 3, 0), (0, -3)
B. vertex (1, 4)
intercepts (-1, 0), (3, 0), (0, 3)
C. vertex (1, -4)
intercepts (-1, 0), (3, 0), (0, -3)
D. vertex (-1, 4)
intercepts (1, 0), (- 3, 0), (0, 3)
Answer: A
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A. 
+ 
+ 
B. 
+ 
+ 
C. 
+ 
D. 
+ 