Straight Lines

---

Question

---

Question 1 : The locus of a point, whose abscissa and ordinate are always equal is
1. x + y + 1 = 0
2. x + y = 1
3. x – y = 0
4. none of these.
Answer
8108

Question 2 : The equation of straight line passing through the point (1, 2) and parallel to the line y = 3x + 1 is
1. y + 2 = x + 1
2. y – 2 = x – 1
3. y + 2 = 3 × (x + 1)
4. y – 2 = 3 × (x – 1)
Answer
8109

Question 3 : What can be said regarding if a line if its slope is negative
1. θ is an acute angle
2. θ is an obtuse angle
3. Either the line is x-axis or it is parallel to the x-axis.
4. None of these
Answer
8110

Question 4 : The equation of the line which cuts off equal and positive intercepts from the axes and passes through the point (α, β) is
1. x + y = α
2. x + y = β
3. x + y = α + β
4. None of these
Answer
8111

Question 5 :

Two lines a₁x + b₁y + c₁ = 0 and a₂x + b₂y + c₂ = 0 are coincedent if

1. a₁/a₂ = b₁/b₂ ≠ c₁/c₂
2. a₁/a₂ ≠ b₁/b₂ = c₁/c₂
3. a₁/a₂ ≠ b₁/b₂ ≠ c₁/c₂
4. a₁/a₂ = b₁/b₂ = c₁/c₂
Answer
8112