y=-0.1x²+2.6x+43(0
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/29 20:23:20
y=-0.1x²+2.6x+43(0
y=-0.1x²+2.6x+43(0
y=-0.1x²+2.6x+43(0
解y=-0.1x²+2.6x+43
=-0.1(x²-26x)+43
=-0.1[x^2-26x+13^2-13^2]+43
=-0.1[(x-13)^2-169]+43
=-0.1(x-13)^2+16.9+43
=-0.1(x-13)^2+59.9.
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来源:学生作业帮助网 编辑:作业帮 时间:2024/06/29 20:23:20
y=-0.1x²+2.6x+43(0
y=-0.1x²+2.6x+43(0
y=-0.1x²+2.6x+43(0
解y=-0.1x²+2.6x+43
=-0.1(x²-26x)+43
=-0.1[x^2-26x+13^2-13^2]+43
=-0.1[(x-13)^2-169]+43
=-0.1(x-13)^2+16.9+43
=-0.1(x-13)^2+59.9.