The function h(t) =0.015P-3t + 160 models the height h (in feet) of an amusement park ride t seconds after it starts.

What is the minimum height of the ride?

____feet

How long does it take the ride to reach the minimum height?

_____seconds

1 answer

The function given is \( h(t) = -3t + 0.015P + 160 \). This is a linear function in terms of \( t \), where the coefficient of \( t \) is negative (-3), indicating that the height decreases as time increases. Therefore, there will not be a minimum height in the traditional sense for \( t \geq 0 \).

However, if we are looking for specific values for \( P \) or a certain context — for instance, if \( P \) is adjusted or if the ride operates within a bounded time interval — the results can change.

Analyzing the equation:

  1. Height Function: The height \( h(t) \) decreases over time indefinitely.
  2. Initial Height: At \( t = 0 \): \[ h(0) = -3(0) + 0.015P + 160 = 0.015P + 160 \]
  3. Behavior as \( t \) Approaches Infinity: As \( t \) increases, \( h(t) \) keeps decreasing, indicating that there is no minimum within the defined function unless bounded by a valid operational time frame or an external edge condition (ground level, for example).

Contextual Interpretation:

  • If we consider real-world applications, the height cannot be negative because negative heights do not make practical sense. Thus, you would need to know conditions where \( h(t) = 0 \) to find bounds.
  • Solve \( 0 = -3t + 0.015P + 160\): \[ 3t = 0.015P + 160 \ t = \frac{0.015P + 160}{3} \]

Conclusions:

  • Minimum Height: In practical scenarios, the minimum height can be considered as the threshold where the ride reaches the ground. The minimum height would be \( 0 \) feet, related to how long it takes to reach that point.
  • Time to Minimum Height: The ride takes \( t = \frac{0.015P + 160}{3} \) seconds to reach that point.

Without specific values for \( P \), we cannot provide numerical answers directly. If \( P \) were provided, we could compute those accordingly.