Describe the transformation required to obtain the graph of the given function from the basic trigonometric graph.y = -7sec x

A. Reflection across the x-axis and vertical stretch by a factor of 7
B. Reflection across the x-axis and vertical translation up 7 units
C. Reflection across the x-axis and horizontal stretch by a factor of 7
D. Reflection across the y-axis and horizontal stretch by a factor of 7


Answer: A

Mathematics

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