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2.3一元不等式

Authored by HOI WONG

Mathematics

9th Grade

Used 8+ times

2.3一元不等式
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10 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

1. (#2003PIQ2) 求使不等式 3−5x4≥2−x 及 x+8>0\frac{3-5x}{4}\ge2-x\ 及\ x+8>0  同時成立的x值的範圍.

 x≤−5x\le-5  

 −8<x-8<x  

 −8<x≤−5-8<x\le-5  

 x>−8 或 x≤−5 x>-8\ 或\ x\le-5\   

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

2. (#2005PIQ4)   求可以同時滿足不等式 −3x+14>x−5及 2x+1≥0\frac{-3x+1}{4}>x-5及\ 2x+1\ge0  的整數。

1,2,3

0 ,1 , 2

1, 2

 −12≤x<3\frac{-1}{2}\le x<3  

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

3. (#2006PIQ2)   求可以滿足不等式 x+1<x+256x+1<\frac{x+25}{6}  的最大整數。

3

4

5

6

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

4. (#2008 PIQ2)   求可以滿足不等式 14x5≥2x+7\frac{14x}{5}\ge2x+7  的最小整數。

7

8

9

10

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

5. (#2012 PIQ6)   有多少個正整數同時滿足 4x+67>2(x−3)及2x−10≤10\frac{4x+6}{7}>2\left(x-3\right)及2x-10\le10  。

3

4

5

6

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

6. (#2012 MC  Q7)   15+4x<4 或 9−2x>115+4x<4\ 或\ 9-2x>1  的解為。

X<-3

x>-3

X<4

x>4

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

7. (#2016 PI  Q6)  寫出滿足 x+6<6(x+11) 或 x≤−5x+6<6\left(x+11\right)\ 或\ x\le-5  的最大負整數。

1

2

-1

-2

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