Which of the following points lie on the graph of the equation :

3x - 5y + 7 = 0?

1. (1, -2)

2. (2, 1)

3. (-1, 2)

4. (1, 2)

The pair of equation x = a and y = b graphically represents lines which are

1. parallel

2. intersecting at (b, a)

3. coincident

4. intersecting at (a, b)

The distance of the point P(-4, 3) from the y-axis is

1. 5 units

2. -4 units

3. 4 units

4. 3 units