Question

To the nearest foot, what is the height of the fireworks when they explode?

Answer 1

87 feet

1. You can find the value of the vertex of the parabola as following:

2. Substitute values:

a=-16

b=70

Then:

3. Substitute the value obtained into the equation given in the problem. Therefore, you obtain the following result:

4. To the nearest foot:

h=87 feet

Explanation:

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