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Question
画图 $y = 2sqrt3{x^2}$,$y = x$
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- 曲线$y=2\sqrt[3]{x^2}$:定义域为$\mathbb{R}$,过原点$(0,0)$和点$(1,2)$、$(-1,2)$,是偶函数,在$(-\infty,0)$单调递减,$(0,+\infty)$单调递增,呈“U”型且在原点处平缓。
- 直线$y=x$:定义域为$\mathbb{R}$,过原点$(0,0)$和点$(1,1)$,斜率为1的单调递增直线。