Short Answer
For the quadratic function pictured determine:
A) the coordinates of its vertex,
B) the equation of the axis of symmetry,
C) the x-coordinates of its horizontal intercepts (enter the values in numerical order separated by a comma), and
D) whether the parabola is concave up or concave down (enter up or down).
Correct Answer:
Verified
A. 
B.
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Correct Answer:
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B.
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