$$y=a(x-h)^2-k.$$a=?
1: The functional image goes through (-3,0) and (1,0).
2: The functional image goes through (-1,4) and $$y \leq 4$$.
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AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
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BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
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CBoth statements TOGETHER are sufficient, but NEITHER one ALONE is sufficient.
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DEACH statement ALONE is sufficient.
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EStatements (1) and (2) TOGETHER are NOT sufficient.
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正确答案: C