1 . f:R→R, fx=2x+1

• A. $0$
• B. $\frac{1}{2}$
• C. $5$
• D. $1$

Answer: Option B

Explanation:

2 . fx=x3-2x+10

• A. 1
• B. 5
• C. 8
• D. 10

Answer: Option D

Explanation:

3 . fx=2x2+3x-1

• A. $6$
• B. $4$
• C. $1$
• D. $-1$

Answer: Option D

Explanation:

4 . fx=x2+1x+1

• A. $f\left(1\right)=1$
• B. $f\left(0\right)=1$
• C. $f\left(-1\right)=1$
• D. $f\left(1\right)=3$

Answer: Option D

Explanation:

5 . Fx=x-12

• A. 36
• B. 16
• C. 35
• D. 28

Answer: Option B

Explanation:

6 . fx=x3+kx2-4x-8

• A. $2$
• B. $-2$
• C. $1/2$
• D. $-\frac{1}{2}$

Answer: Option A

Explanation:

7 . fx=x3+2x2-3

• A. $-12$
• B. $-48$
• C. $-42$
• D. $12$

Answer: Option A

Explanation:

8 . fx=x3-3x2-9x

• A. $f"\left(2\right)<0$
• B. $f"\left(2\right)>0$
• C. $f"\left(2\right)=0$
• D. $f\text{'}\left(2\right)=0$

Answer: Option B

Explanation:

9 . fx 7x2dx=?

• A. $\frac{1}{2}\frac{7x^2}{2\log e7}+c$
• B. $\frac{1}{2}\frac{7x^2}{2\log e7}+c$
• C. $\frac{7x^2}{\log 7^c}+c$
• D. Try your self

Answer: Option D

Explanation:

10 . fx=x2+1x-1-1

• A. $f\left(0\right)=\infty$
• B. $f\left(1\right)=-1$
• C. $f\left(1\right)=0$
• D. $f\left(-1\right)=-1$

Answer: Option D

Explanation:

11 . f:R→R,fx=2x+1

• A. 0
• B. $\frac{1}{2}$
• C. 5
• D. 1

Answer: Option B

Explanation:

12 . fx=x3+9x2-3x-6

• A. 28
• B. -44
• C. 32
• D. 26

Answer: Option A

Explanation:

13 . fx=x2-5x+6

• A. 2,3
• B. -5,1
• C. -2,3
• D. 1,-5

Answer: Option A

Explanation:

14 . fx=x3+7

• A. 21
• B. 27
• C. 3
• D. 7

Answer: Option C

Explanation:

15 . fx,y=x2y2,

• A. 64
• B. 16
• C. 96
• D. 32

Answer: Option A

Explanation:

16 . fx=x3+ax3+2x3=0

• A. 3
• B. 1
• C. 0
• D. -3

Answer: Option D

Explanation:

17 . fx=2x+1x-3

• A. R
• B. $\left(3,\infty \right)$
• C. $\left(-\infty .3\right)$
• D. $R-\left\{3\right\}$

Answer: Option A

Explanation:

18 . fx=x2+kx

• A. 1
• B. 2
• C. -1
• D. -2

Answer: Option B

Explanation:

19 . fx=xx2+1

• A. $\left(-\infty ,0\right)$
• B. $\left(-1,1\right)$
• C. $\left(0,\infty \right)$
• D. $\left(-1,\infty \right)$

Answer: Option B

Explanation: