Problem

Assume the function $H(t)=-10 t^{2}+50 t+6$ models the fireball data as the height of the fireball in feet above the ground as a function of time in seconds. Part of the game includes a laser that can explode fireballs. If the laser's path follows the function below, when will the laser explode the fireball? Use technology (Desmos or graphing calculator). \[ L(t)=7.9 t-10.6 \] Based on your answer from the previous question (\#5), explain the meaning of your ordered pair. - Answer in a complete sentence. - Be specific.

Solution

Step 1 :The problem is asking when the height of the fireball, modeled by the function \(H(t)=-10 t^{2}+50 t+6\), will be equal to the height of the laser, modeled by the function \(L(t)=7.9 t-10.6\). This means we need to find the time \(t\) when \(H(t) = L(t)\).

Step 2 :This can be solved by setting the two equations equal to each other and solving for \(t\).

Step 3 :The solution to the equation gives two values for \(t\). However, since time cannot be negative in this context, we discard the negative value.

Step 4 :Therefore, the laser will explode the fireball at approximately 4.57 seconds.

Step 5 :Final Answer: The laser will explode the fireball at approximately \(\boxed{4.57}\) seconds.

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Source: https://solvelyapp.com/problems/HsvlbA1sBK/

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