各位天才看下(a)write x平方-4x+7 in the form (x+a)的平方+b where a and b are constants to be found(b)hence or otherwise sketch the graph of y=x平方-4x+7 labelling the points where the graph turns and crosses the axes然后写下过程可
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各位天才看下(a)write x平方-4x+7 in the form (x+a)的平方+b where a and b are constants to be found(b)hence or otherwise sketch the graph of y=x平方-4x+7 labelling the points where the graph turns and crosses the axes然后写下过程可
各位天才看下
(a)write x平方-4x+7 in the form (x+a)的平方+b where a and b are constants to be found
(b)hence or otherwise sketch the graph of y=x平方-4x+7 labelling the points where the graph turns and crosses the axes
然后写下过程可以么 小弟在此谢了.
各位天才看下(a)write x平方-4x+7 in the form (x+a)的平方+b where a and b are constants to be found(b)hence or otherwise sketch the graph of y=x平方-4x+7 labelling the points where the graph turns and crosses the axes然后写下过程可
晕,莫名其妙
以(x+a)^2+b的形式写出x^2-4x+7,其中,a和b是被给出的常数
画出y=x^2-4x+7的图象,标出x轴和y轴的交