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Home > PC3 > Chapter 8 > Lesson 8.1.3 > Problem 8-46


The graph of a transformation of y = cos(x) has the y-axis as a line of symmetry and (20, 50) as a point of symmetry. The line y = 15 is tangent to the graph at many places. Write a possible equation for this graph. Homework Help ✎

If the y-axis is a line of symmetry, then there is no horizontal shift.

Make a sketch of the situation.