配套习题-一次函数及其图像性质 -【青果学院】

本课配套习题挑战模式1/5

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单选题

难度系数：

1.下列函数①y=πx，②y=2x-1，③y＝

，④y=2^-1-3x，⑤y=x²-1中，是一次函数的有（　　）

A: 4个

B: 3个

C: 2个

D: 1个

提示1：5qC55o2u5LiA5qyh5Ye95pWw55qE5a6a5LmJ5p2h5Lu26L+b6KGM6YCQ5LiA5YiG5p6Q5Y2z5Y+v77yO
答案：Qg==
6Kej77ya4pGgeT3PgHjmmK/kuIDmrKHlh73mlbDvvJs8YnI+4pGheT0yeC0x5piv5LiA5qyh5Ye95pWw77ybPGJyPuKRonk9PGltZyB3aWR0aD03IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0M3LzlCL3JCQUNFMVdiaVVfeTExcjRBQUFCUXk2aHdrZzQwMi5wbmciPu+8jOiHquWPmOmHj+asoeaVsOS4jeS4ujHvvIzkuI3mmK/kuIDmrKHlh73mlbDvvJs8YnI+4pGjeT0yPHN1cD4tMTwvc3VwPi0zeOaYr+S4gOasoeWHveaVsO+8mzxicj7ikaR5PXg8c3VwPjI8L3N1cD4tMe+8jOiHquWPmOmHj+asoeaVsOS4jeS4ujHvvIzkuI3mmK/kuIDmrKHlh73mlbDvvI48YnI+5pWF6YCJ77yaQu+8jg==

本课配套习题挑战模式2/5

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单选题

难度系数：

2.一次函数y=

x-1的图象大致是（　　）

A:

B:

C:

D:

提示1：5om+5Yiw5Ye95pWw5LiOeOi9tOWSjHnovbTnmoTkuqTngrnvvIznlLvlh7rlh73mlbDlm77osaHvvIzop6PnrZTljbPlj6/vvI4=
答案：Qg==
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

本课配套习题挑战模式3/5

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单选题

难度系数：

3.

已知函数y=（m²+2m）x^m²+m−1 +（2m-3）是x的一次函数，则常数m的值为（　　）

A:
-2

B:
1

C:
-2或-1

D:
2或-1

提示1：PHA+5qC55o2u5LiA5qyh5Ye95pWw5a6a5LmJ5Y+v5b6XbTxzdXA+Mjwvc3VwPittLTE9MeS4lG08c3VwPjI8L3N1cD4rMm3iiaAw5YaN6Kej5pa556iL5Y2z5Y+v5b6X5YiwbeeahOWAvO+8jjwvcD4=
答案：Qg==
PHA+6Kej77ya55Sx6aKY5oSP5b6X77yabTxzdXA+Mjwvc3VwPittLTE9MeS4lG08c3VwPjI8L3N1cD4rMm3iiaAw77yMPGJyPuino+W+l++8mm09Me+8jjxicj7mlYXpgInvvJpC77yOPC9wPg==

本课配套习题挑战模式4/5

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单选题

难度系数：

4.一次函数y=ax+b和一次函数y=bx+a图象正确的是（　　）

A:

B:

C:

D:

提示1：5pys6aKY5Y+v5YWI56Gu5a6a5LiA5qyh5Ye95pWweT1heCti55qE5a2X5q+N57O75pWw55qE5q2j6LSf77yM5YaN5Yik5pat5Ye95pWweT1ieCth55qE5a2X5q+N57O75pWw55qE5q2j6LSf77yM5LuO6ICM5b6X5Yiw562U5qGI77yO
答案：Qg==
6Kej77yb6K6+Ye+8njDvvIxi77ycMO+8jOWImeWHveaVsHk9YXgrYueahOWbvuixoeaYr+S4iuWNh+eahO+8jOS6pHnovbTnmoTotJ/ljYrovbTvvIzlh73mlbB5PWJ4K2Hlm77osaHmmK/kuIvpmY3nmoTvvIzkuI556L205Lqk5LqO5q2j5Y2K6L2077yMPGJyPuiuvmHvvJww77yMYu+8njDvvIzliJnlh73mlbB5PWF4K2LnmoTlm77osaHmmK/kuIvpmY3nmoTvvIzkuqR56L2055qE5q2j5Y2K6L2077yM5Ye95pWweT1ieCth5Zu+6LGh5piv5LiK5Y2H55qE77yM5LiOeei9tOS6pOS6jui0n+WNiui9tO+8jDxicj7orr5h77yeMO+8jGLvvJ4w77yM5YiZ5Ye95pWweT1heCti55qE5Zu+6LGh5piv5LiK5Y2H55qE77yM5Lqkeei9tOeahOato+WNiui9tO+8jOWHveaVsHk9YngrYeWbvuixoeaYr+S4iuWNh+eahO+8jOS4jnnovbTkuqTkuo7mraPljYrovbTvvIw8YnI+6K6+Ye+8nDDvvIxi77ycMO+8jOWImeWHveaVsHk9YXgrYueahOWbvuixoeaYr+S4i+mZjeeahO+8jOS6pHnovbTnmoTotJ/ljYrovbTvvIzlh73mlbB5PWJ4K2Hlm77osaHmmK/kuIvpmY3nmoTvvIzkuI556L205Lqk5LqO6LSf5Y2K6L2077yMPGJyPuaVhemAiULvvI4=

本课配套习题挑战模式5/5

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单选题

难度系数：

5.设0＜k＜2，关于x的一次函数y=kx+2（1-x），当1≤x≤2时的最大值是（　　）

A: 2k-2

B: k-1

C: k

D: k+1

提示1：6aaW5YWI56Gu5a6a5LiA5qyh5Ye95pWw55qE5aKe5YeP5oCn77yM5qC55o2u5aKe5YeP5oCn5Y2z5Y+v5rGC6Kej77yO
答案：Qw==
6Kej77ya5Y6f5byP5Y+v5Lul5YyW5Li677yaeT3vvIhrLTLvvIl4KzI8YnI+4oi1MO+8nGvvvJwyPGJyPuKItGstMu+8nDDvvIzliJnlh73mlbDlgLzpmo9455qE5aKe5aSn6ICM5YeP5bCP77yOPGJyPuKItOW9k3g9MeaXtu+8jOWHveaVsOWAvOacgOWkp++8jOacgOWkp+WAvOaYr++8mu+8iGstMu+8iSsyPWs8YnI+5pWF6YCJQ++8jg==

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本课配套习题挑战模式3/5

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