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A teacher asks four students to write a description for each transformation of the function f(x)=3(7)x. Student Transformation Description 1 g(x)=f(x)−4 a vertical translation 4 units up 2 h(x)=f(x)−1 a horizontal translation 1 unit right 3 j(x)=f(x−4) a horizontal translation 4 units left 4 k(x)=−f(x) a reflection across the x-axis Which student describes a transformation correctly?