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Suppose D(T) = A(T-H)2 +K represents the hieght of an object in feet after T seconds. Suppose an object has a
maximum height of 12 feet after 2 seconds. This same has height of 0 feet after 3 seconds. Create D(T) answers in
exact form.

Sagot :

sqdancefan

Answer:

  D(T) = -12(T -2)² +12

Step-by-step explanation:

You want the quadratic function D(T) = A(T -H)² +K that has a vertex of (2, 12) and goes through the point (3, 0).

Vertex form

The given equation is in vertex form, which mean the maximum (vertex) is (H, K) = (2, 12). The value of A can be found using the other supplied point.

  D(3) = 0

  D(3) = 0 = A(3 -2)² +12 = A +12   ⇒   A = -12 . . . . . using T=3, (H, K) = (2, 12)

The function D(T) is ...

  D(T) = -12(T -2)² +12

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