What kind of transformation converts the graph of f(x)=−8x2−2 into the graph of g(x)=−8(x+8)2−2?Choices:(A) translation 8 units left(B) translation 8 units up(C) translation 8 units down(D) translation 8 units right
Q. What kind of transformation converts the graph of f(x)=−8x2−2 into the graph of g(x)=−8(x+8)2−2?Choices:(A) translation 8 units left(B) translation 8 units up(C) translation 8 units down(D) translation 8 units right
Analyze Functions: Analyze the given functions.We have the original function f(x)=−8x2−2 and the transformed function g(x)=−8(x+8)2−2. We need to determine the type of transformation that occurs between these two functions.
Compare Functions: Compare the two functions.The original function f(x) is in the form of −8x2−2, which is a parabola facing downwards with its vertex at the origin (0,−2). The transformed function g(x) is in the form of −8(x+8)2−2, which is also a parabola facing downwards. The vertex form of a parabola is y=a(x−h)2+k, where (h,k) is the vertex of the parabola.
Identify Vertex: Identify the vertex of the transformed function.The vertex form of g(x) is −8(x−(−8))2−2, which means the vertex of g(x) is at (−8,−2).
Determine Transformation Type: Determine the type of transformation.The vertex of f(x) is at (0,−2) and the vertex of g(x) is at (−8,−2). The y-coordinate of the vertex has not changed, so there is no vertical translation. The x-coordinate of the vertex has changed from 0 to −8, which indicates a horizontal translation.
Determine Translation Magnitude: Determine the direction and magnitude of the horizontal translation.The x-coordinate of the vertex has moved from 0 to −8, which means the graph has shifted 8 units to the left.
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