Does the graph of y^2-xy=5 have y-axis symmetry?Justify your
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Does the graph of y^2-xy=5 have y-axis symmetry?Justify your answer algebraically showing work.
我的理解就是y^2-xy=5是否关于y轴对称?用代数方法进行判断.
我的理解就是y^2-xy=5是否关于y轴对称?用代数方法进行判断.
你的理解是对的,题意:y^2-xy=5是否关于y轴对称?并用代数方法证明它..
先解出函数解析式:y=x/2+√(x ^2+5)和 y=x/2-√(x ^2+5 )再证明
对任意x,f(-x)=-x/2+√(x ^2+5)≠f(x)和 y=-x/2-√(x ^2+5 )≠f(x)
所以不关于y轴对称
先解出函数解析式:y=x/2+√(x ^2+5)和 y=x/2-√(x ^2+5 )再证明
对任意x,f(-x)=-x/2+√(x ^2+5)≠f(x)和 y=-x/2-√(x ^2+5 )≠f(x)
所以不关于y轴对称
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