Which of the following graphs best represents the straight line \(y=-2x+5\text{?}~\)

1.		2.
3.		4.

The relationship y = $\frac{3}{\mathrm{x}}$ is best represented as 

1. 

2. 

3. 

4. 

Which graph represents the function \(y=x^2+1\text{?}\)

1.		2.
3.		4.

The slope of a curve between y and x changes from 0 to -5 as x changes from 0 to 5. Which of the following curve best represents the above mentioned curve?

1. 

2. 

3. 

4. 

Which of the following graphs has a positive, decreasing slope?

1.		2.
3.		4.

The slope of a curve is initially positive, then becomes zero, and thereafter becomes negative. Which of the following graphs best represents this behaviour?

1.		2.
3.		4.

Which of the following represented to \(U-x\) graph of \(U=\dfrac{1}{2} K \left(\right. A^{2}   -   x^{2} \left.\right)   ?   \left(\right. K > 0 \left.\right)\)
1. 

2. 

3. 

4. 

For the given figure, which of the following is true?

                          
1. \(\overrightarrow{B}= \overrightarrow{A}+\overrightarrow{C}\)
2. \(\overrightarrow{A}= \overrightarrow{B}+\overrightarrow{C}\)
3. \(\overrightarrow{C}= \overrightarrow{A}+\overrightarrow{B}\)
4. All of these

The value of the unit vector, which is perpendicular to both \(A=\hat{i} + 2\hat{j} + 3 \hat{k}\) and \(B= \hat{i} - 2\hat{j} - 3 \hat{k}\) $\mathrm{is\; equal\; to}$:

1. \(\frac{\hat{i}   +   2 \hat{j}   +   3 \hat{k}}{6}\)
2. \(\frac{6\hat{j} -4 \hat{k}}{\sqrt{52}}\)
3. \(\frac{6\hat{j} +4 \hat{k}}{\sqrt{52}}\)
4. \(\frac{2\hat{i} - \hat{j}}{\sqrt{5}}\)