What kind of transformation converts the graph of f(x)=−8(x−4)2+6 into the graph of g(x)=−8(x+6)2+6?Choices:[A]translation 10 units left[B]translation 10 units right[C]translation 10 units up[D]translation 10 units down
Q. What kind of transformation converts the graph of f(x)=−8(x−4)2+6 into the graph of g(x)=−8(x+6)2+6?Choices:[A]translation 10 units left[B]translation 10 units right[C]translation 10 units up[D]translation 10 units down
Identify vertex of f(x): Identify the vertex of the function f(x).The function f(x)=−8(x−4)2+6 is in vertex form, where the vertex (h,k) can be found directly from the equation. The vertex of f(x) is at (h,k)=(4,6).
Identify vertex of g(x): Identify the vertex of the function g(x).The function g(x) = −8(x+6)2+6 is also in vertex form. The vertex of g(x) is at (h,k)=(−6,6).
Determine type of transformation: Determine the type of transformation.The transformation involves a change in the x-coordinate of the vertex while the y-coordinate remains the same. This indicates a horizontal shift.
Determine direction of horizontal shift: Determine the direction of the horizontal shift.The x-coordinate of the vertex of f(x) is 4, and the x-coordinate of the vertex of g(x) is −6. Since −6 is to the left of 4 on the number line, the graph has shifted to the left.
Calculate magnitude of horizontal shift: Calculate the magnitude of the horizontal shift.The shift is the difference between the x-coordinates of the vertices of f(x) and g(x). The shift is ∣4−(−6)∣=∣4+6∣=∣10∣=10 units.
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