A person dives into a pool from its edge to swim to the other side. The table shows the depth in feet of the person from the surface of the water after `x` seconds. The data can be modeled by a quadratic function.
Which function best models the data?
Time, x (seconds) Depth of Person from Surface of Water, d(x) (feet)
1 negative 1.8 5
−1.85
4 negative 7.2 8
−7.28
6 negative 8.3
−8.3
8.5 negative 6.6 5
−6.65
10 negative 4.1
−4.1
11.5 negative 0.3 8
−0.38
1 answer
The data can be modeled by the quadratic function: d(x) = -0.4x^2 + 8x - 0.6.
1 answer