To analyze the function \( h(t) = -16t^2 + 20t \), we need to identify the x-intercept, which occurs when \( h(t) = 0 \).
To find the x-intercept(s), we can set the equation to zero:
\[ -16t^2 + 20t = 0 \]
Factoring out \( t \):
\[ t(-16t + 20) = 0 \]
Thus, the solutions are:
\[ t = 0 \quad \text{or} \quad -16t + 20 = 0 \]
Solving the second equation:
\[ -16t + 20 = 0 \rightarrow 16t = 20 \rightarrow t = \frac{20}{16} = 1.25 \]
The x-intercepts are \( t = 0 \) and \( t = 1.25 \).
Interpretation of the x-intercepts:
- \( (0, 0) \): This means the diver jumps off the platform at time \( t = 0 \) seconds with an initial height of 0 feet (the height of the water surface).
- \( (1.25, 0) \): This means the diver will enter the water 1.25 seconds after jumping.
Conclusion:
Thus, the correct interpretation for the x-intercept of \( (1.25, 0) \) is:
(1.25, 0); The diver will enter the water 1.25 seconds after he jumps.
This corresponds to the third response choice in your provided options.