For each graph of a quadratic function 
a) Tell whether a is positive or negative,b) Determine the vertex,c) Determine the axis of symmetry, andd) Determine the range.
A. Positive; (-1, -3); x= -1; (-?, -3]
B. Positive; (-3, -1); x= -3; (-?, -1]
C. Negative; (-1, -3); x= -1; (-?, -3]
D. Negative; (-1, -3); y= -1; (-?, -3)
Answer: C
Mathematics
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A. 
B. 
C. 
D. 
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Use grouping to factor the polynomial.5x3 + 15x2 - 2x - 6
A. (5x2 + 2)(x - 3) B. (5x2 - 2)(x + 3) C. (5x2 - 2)(x - 3) D. (5x2 + 2)(x + 3)
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Find the indicated matrix.Let A = 
and B = 
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