nex_math/data/question_images/generated_2c6366420f1d4360a18ca957e7f6d025.svg

<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 300 220'><line x1='20' y1='120' x2='280' y2='120' stroke='black'/><line x1='150' y1='20' x2='150' y2='200' stroke='black'/><polygon points='280,120 272,116 272,124' fill='black'/><polygon points='150,20 146,28 154,28' fill='black'/><line x1='150' y1='20' x2='150' y2='200' stroke='red' stroke-dasharray='5,4'/><polyline points='50,20 150,120 250,20' fill='none' stroke='blue' stroke-width='2'/><text x='270' y='138'>x</text><text x='158' y='28'>y</text><text x='190' y='45' fill='blue'>f(x)=|x|</text><text x='158' y='190' fill='red'>y轴对称</text></svg>