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What kind of transformation converts the graph of f(x)=9(x+6)2+1f(x) = 9(x + 6)^2 + 1 into the graph of g(x)=9(x+6)28g(x) = 9(x + 6)^2 - 8?\newlineChoices:\newline(A) translation 99 units right\newline(B) translation 99 units left\newline(C) translation 99 units down\newline(D) translation 99 units up

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Q. What kind of transformation converts the graph of f(x)=9(x+6)2+1f(x) = 9(x + 6)^2 + 1 into the graph of g(x)=9(x+6)28g(x) = 9(x + 6)^2 - 8?\newlineChoices:\newline(A) translation 99 units right\newline(B) translation 99 units left\newline(C) translation 99 units down\newline(D) translation 99 units up
  1. Identify Vertex f(x)f(x): Identify the vertex of the function f(x)f(x). The function f(x)=9(x+6)2+1f(x) = 9(x + 6)^2 + 1 is already in vertex form, which is y=a(xh)2+ky = a(x - h)^2 + k, where (h,k)(h, k) is the vertex of the parabola. For f(x)f(x), the vertex is at (6,1)(-6, 1).
  2. Identify Vertex g(x)g(x): Identify the vertex of the function g(x)g(x). The function g(x)=9(x+6)28g(x) = 9(x + 6)^2 - 8 is also in vertex form, and since the (x+6)2(x + 6)^2 part is the same as in f(x)f(x), the xx-coordinate of the vertex will be the same. For g(x)g(x), the vertex is at (6,8)(-6, -8).
  3. Type of Transformation: Determine the type of transformation.\newlineSince the xx-coordinates of the vertices of f(x)f(x) and g(x)g(x) are the same, there is no horizontal shift. The yy-coordinate of the vertex of g(x)g(x) is 99 units lower than the yy-coordinate of the vertex of f(x)f(x) (1(8)=91 - (-8) = 9). This indicates a vertical shift.
  4. Direction of Shift: Determine the direction of the vertical shift.\newlineThe y-coordinate of the vertex of g(x)g(x) is 8-8, which is less than the y-coordinate of the vertex of f(x)f(x), which is 11. This means the graph has moved downwards.
  5. Magnitude of Shift: Calculate the magnitude of the vertical shift.\newlineThe difference in the y-coordinates of the vertices is 1(8)=91 - (-8) = 9. This means the graph of f(x)f(x) has been shifted 99 units down to get the graph of g(x)g(x).

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