The equation of a line passing through the point (5, –3) and having the y-intercept of 8 units below the x-axis is:

1. x + y – 8 = 0

2. x – y – 8 = 0

3. 2x + y – 4 = 0

4. x – 2y – 8 = 0

The value of m such that the points A(5, –2), B(8, –3) and C(m, –12) are collinear, is:

1. 29

2. 33

3. 35

4. 41

Two non-vertical lines with slopes m₁ and m₂ are parallel to each other, if:

1. m₁m₂ = 1

2. m₁m₂ = –1

3. m₁ = –m₂

4. m₁ = m₂

Two non-vertical lines with slopes m₁ and m₂ are perpendicular to each other, if:

1. m₁.m₂ = 1

2. m₁.m₂ = –1

3. m₁ = –m₂

4. m₁ = m₂