You find a car that costs $18,500. If the interest rate on a 5-year loan is 6.25% and you make monthly payments on the car, what
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Considering the vertex of the quadratic equation, it is found that the scuba diver reaches maximum depth after 6 seconds.
<h3>What is the vertex of a quadratic equation?</h3>A quadratic equation is modeled by:
The vertex is given by:
In which:
Considering the coefficient a, we have that:
- If a < 0, the vertex is a maximum point.
- If a > 0, the vertex is a minimum point.
In this problem, the depth is given by:
D(x) = -x² + 12x + 4.
Which means that the coefficients are a = -1, b = 12, c = 4, hence:
The scuba diver reaches maximum depth after 6 seconds.
More can be learned about the vertex of a quadratic equation brainly.com/question/24737967