Verified Answer :

Wildiris

the answer is D, (0,-3), (0,3). 
The vertices are the highest and lowest points of each parabola of the graph. On a positive parabola (one that curves upward), the vertice is the lowest point, on a negative parabola (one that curves downward), the vertice is the highest point. In this particular case, the vertice of the parabola on top is (0,3) because its lowest point is (0,3). The vertice of the parabola on the bottom is (0,-3) because its highest point is (0,-3).

jhonyy9

than you check these graphs where you see these vertices that there are on what points with what coordinates ?

this on the top has wertex on (0,3 and the bottom has wertex on (0,-3)

yes ? so in this case what choice will be right sure ?

hope this will help you answering your exercise easy right

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