学校拓展小组研制了绘图智能机器人(如图1),顺次输入点,,的

 学校拓展小组研制了绘图智能机器人(如图1),顺次输入点的坐标,机器人能根据图2,绘制图形.若图形是线段,求出线段的长度;若图形是抛物线,求出抛物线的函数关系式.请根据以下点的坐标,求出线段的长度或抛物线的函数关系式.

1.

2.

答案

1)绘制线段;(2)绘制抛物线.

【解析】【分析】(1绘制线段.

2,绘制抛物线,用待定系数法求函数解析式即可.

【解答】(1

绘制线段.

2

绘制抛物线,

,把点坐标代入得

,即.

【点评】属于新定义问题,考查待定系数法求二次函数解析式,解题的关键是弄懂程序框图.

相关题目

--What's that noise? --Bob and his sister ________ computer games. A.have pl
--What's that noise? --Bob and his sister ________ computer games. A.have played          B.are playing           C.played             D.will play
第三次科技革命似惊雷闪电迅速席卷整个世界,其影响之大
第三次科技革命似惊雷闪电迅速席卷整个世界,其影响之大是以往任何一次都无法比拟的。这次科技革命最为突出的核心技术是(   )
---I’m not _____ up so early yet but I have to _____ myself to it. ---Yeah.
---I’m not _____ up so early yet but I have to _____ myself to it. ---Yeah. Just as the saying goes,” An early bird catches the worm.” A .used to getting; adopt                
下图为我国某盆地自然景观剖面图,读图回答1-3题。   1.根
下图为我国某盆地自然景观剖面图,读图回答1-3题。   1.根据图中信息判断,该盆地为 A.塔里木盆地  B.准噶尔盆地 C.柴达木盆地  D.四川盆地 2
 A bank is the place ______ they lend you an umbrella in fair weather and ask
 A bank is the place ______ they lend you an umbrella in fair weather and ask for it back when it begins to rain.    A. when                 B. that                
x2+3x+2=0(公式法).
x2+3x+2=0(公式法).
Wang Fei,a Chinese student,and Mary,an American student studying Chinese i
Wang Fei,a Chinese student,and Mary,an American student studying Chinese in China,were in a supermarket. They saw a young man walking down the stairs. In his hurry,he missed the last two st
两角钱 肖复兴 有时只是举手之劳,就能帮助别人,但我们对
两角钱 肖复兴 有时只是举手之劳,就能帮助别人,但我们对好多举手之劳的事情却总是熟视无睹,而不愿意伸出手来。     那天下午,我去邮局寄信

最新题目