Ming throws a stone off a bridge into a river below.The stone's height (in meters above the water), x seconds after Ming threw it, is modeled by:h(x)=−5(x−1)2+45What is the maximum height that the stone will reach?meters
Q. Ming throws a stone off a bridge into a river below.The stone's height (in meters above the water), x seconds after Ming threw it, is modeled by:h(x)=−5(x−1)2+45What is the maximum height that the stone will reach?meters
Identify Function Type: Identify the type of function and its properties.The function h(x)=−5(x−1)2+45 is a quadratic function in the form of h(x)=a(x−h)2+k, where (h,k) is the vertex of the parabola. Since the coefficient of the squared term is negative (a=−5), the parabola opens downwards, which means the vertex is the maximum point of the function.
Determine Vertex: Determine the vertex of the parabola.The vertex form of the quadratic function gives us the vertex directly. The vertex (h,k) of the function h(x)=−5(x−1)2+45 is (1,45). This means the maximum height of the stone is 45 meters, which occurs at x=1 second.
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