Solving a Real-World Problem
Manny observed a Northern Gannet, a deep diving seabird, hovering at a height of 10 meters above the ocean
surface. The bird then dove into the water, diving to a depth of 16 meters before coming to the surface. The dive can
be modeled by a quadratic function,
y = x2 - 10.3x + 10, where x represents the time the dive lasted in seconds and y represents the height of the bird in
meters. Use the graphing calculator to graph the equation. After how many seconds did the bird surface? Round
your answer to the nearest tenth.
seconds
✓ Done
Intro

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