Which equation represents the graph of y = cos x flipped across the x-axis then shifted vertically up by 2 units? A.y = cos(-x) + 2 B.y = cos(x - 2) C.y = -cos x + 2 D.y = -cos x - 2

y = cos x
After flipping a cross the x-axis
∴ y = - cos x
After shifting vertically up by 2 units
∴ y = - cos x +2

the correct answer is option C
C.y = -cos x + 2

See the attached figure