If the slope of the line passing through the points (2, 5) and (k, 3) is 2, then the value of k is:

1. 0

2. –1

3. 1

4. 2

What can be said regarding a straight line if its slope is negative?

1. Inclination, θ is an acute angle.

2. Inclination, θ is an obtuse angle.

3. Either the line is x-axis or it is parallel to the x-axis.

4. Either the line is y-axis or it is parallel to the y-axis.

The slope of the line, 3x – $2\sqrt2y$ – 4 = 0 is:

1. $\dfrac{3\sqrt{2}}{2}$

2. $\dfrac{-3\sqrt{2}}{2}$

3. $\dfrac{3\sqrt{2}}{4}$

4. $-\dfrac{3\sqrt{2}}{4}$

The equation of the line passing through the points A(4, 3) and B(–2, 6) is :

1. x + 2y – 10 = 0

2. x – 2y – 6 = 0

3. x – 3y + 8 = 0

4. x + 2y – 6 = 0