2021 SC 1 Quiz 1

2021 SC 1 Quiz 1

10th Grade

10 Qs

quiz-placeholder

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2021 SC 1 Quiz 1

2021 SC 1 Quiz 1

Assessment

Quiz

Mathematics

10th Grade

Practice Problem

Hard

Created by

刘志民 刘志民

Used 6+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

求函数

 f(x)=2x1f\left(x\right)=\frac{2}{x-1}  的定义域。

 {x: xR, x>1}\left\{x:\ x\in R,\ x>1\right\}  

 {x : x  R, x  1}\left\{x\ :\ x\ \in\ R,\ x\ \ge\ 1\right\}  

 {x : x R, x 1}\left\{x\ :\ x\in\ R,\ x\ne\ 1\right\}  

 {x : x  R, x  1}\left\{x\ :\ x\ \in\ R,\ x\ \le\ 1\right\}  

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 f(x)=x23x+5f\left(x\right)=x^2-3x+5  , 求  f(1)f\left(-1\right)  的值。

6

7

8

9

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 f(x)=x2+3f\left(x\right)=x^2+3  及   g(x)=13xg\left(x\right)=1-3x  ,求  g [f(2)]g\ \left[f\left(-2\right)\right]  的值。


- 20

4

9

52

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

18

21

24

27

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

已知 f(x)=3x12f\left(x\right)=\frac{3x-1}{2}  ,求  f1(x)f^{-1}\left(x\right)  。


 12x3\frac{1-2x}{3}  

 2x+13\frac{2x+1}{3}  

 3x+12\frac{3x+1}{2}  

 3x12\frac{3x-1}{2}  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

求函数 f\left(x\right)=2x^2+4x-5  的顶点坐标。

(-1, -6)

(1, -6)

(1, -4)

(-1, -7)

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

以下那一个是函数 f(x)=2x28x+1f\left(x\right)=2x^2-8x+1  的对称轴?

 x=7x=-7  

 x=2x=2  

 x=2x=-2  

 x=1x=1  

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