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Mathematics, 22.02.2021 06:40 Dkhaurithompson

The height, y, of a ball tossed into the air can be represented by the equation y = −x 2 + 10x + 3, where x is the elapsed time. What is the equation of the axis of symmetry of this parabola?
1) y=5
2) y=−5
3) x=5
4) x=−5

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