(Section 1.7: Symmetry Revisited) 1.7.10 PART E: SYMMETRY AND EQUATIONSConsider an equation in xand yand its graph in the usual xy-plane. 1)The graph is symmetric about the y-axis±Replacing all occurrences of xwith ±x()yields an equivalent equation. Special Case: y=fx, wherefis an evenfunction. The equations below are then equivalent: y=f±x²y=2)The graph is symmetric about the x-axis±Replacing all occurrences of ywith ±yyields an equivalent equation. 3)The graph is symmetric about the origin±Replacing xwith ±xandywith ±yyields an equivalent equation. Special Case
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