Determine two functions, designated by y1 and y2, such that their union will give the graph of the given equation.16x2 + 16y2 = 25

A. y1 =  and y2 = - 
B. y1 =  and y2 = - 
C. y1 = 4x + 4y and y2 = 5
D. y1 =  and y2 = - 

Answer: A

Mathematics

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