sketch the region in the plane consisting of all points(x,y) such that |x|+|y|≤1就是|x|+|y|≤1用图像法怎么表示,告诉我经过横纵坐标轴的那个点和描法就行.

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sketch the region in the plane consisting of all points(x,y) such that |x|+|y|≤1
就是|x|+|y|≤1用图像法怎么表示,告诉我经过横纵坐标轴的那个点和描法就行.

这个图像应该是由4条线段和坐标轴围成的一个实心的正方形
先在第一象限里面做出x+y=1来(取点(1,0)(0,1)
直线x+y=1和坐标轴围成1个等腰直角三角形
然后这个图像沿着Y轴对折做出跟Y轴对称的第二象限的图像.
再做出跟X轴对称的在第三,四象限的图像
最后把4条边里面的都涂黑 我们最后得到的正方形就是函数 |x|+|y|≤1 的图像.

坐标为(1,0)和(-1,0)和(0,1)和(0,-1)组成的图形,注意是四点内的图像。。就是原点周围。。。回答完毕。。

是个转了45度的正方形
过 (-1,0) , (0,1) , (1,0) ,(0,-1)
这四个点是正方形四个顶点,在两个顶点间连线即可

sketch the region in the plane consisting of all points(x,y) such that |x|+|y|≤1就是|x|+|y|≤1用图像法怎么表示,告诉我经过横纵坐标轴的那个点和描法就行. in the area/region还是in the areas/regions? Localized pain in the region of the heart sketch Country/Region in which the product will be used: express the area of the shaded region in the figure in terms of x and y the camp is located in the northern region of the famous our country. 英语翻译The economic and social development in the western region,however,is still at the hert of theWestern Region Development Strategy. last year the region was visited by the worst flood in 60 years.翻译 The company will also be able to take advantage of good logistics in the region. 翻译:Half the roads in the region are still to be made up. Premier Wen said China values the favorable conditions of peace in the region怎么翻译. Sketch each angle in standard position. State theSketch each angle in standard position. State the quadrant in which the terminal arm lies. the lower Yangtze macro-region是什么意思原句是:Shanghai was an important river and coastal port in the lower Yangtze macro-region 英语翻译But it's no longeq what it once was in the region 英译汉The company will send a representative to attend to their business in that region This city is located in a region of South Africa known as the________ Route. What is the maximum electric energy density in a region containing dry air at standard conditions?