Assertion (A): PQR is an equilateral triangle. The co-ordinates of point Q are (0, $2\sqrt{2}$).

Reason (R): In ΔOPQ,

OQ² = PQ² - OP² = 4² - 2² = 12.

1. A is true, but R is false.

2. A is false, but R is true.

3. Both A and R are true, and R is the correct reason for A.

4. Both A and R are true, and R is the incorrect reason for A.

Assertion (A): (2x - 3y, 8) = (2, x + 2y)

⇒ x = 1 and y = -2

Reason (R): 2x - 3y = 2 and 8 = x + 2y

1. A is true, but R is false.

2. A is false, but R is true.

3. Both A and R are true, and R is the correct reason for A.

4. Both A and R are true, and R is the incorrect reason for A.

By plotting the following points on the same graph paper, check whether they are collinear or not :

(-2, -1), (-1, -4) and (-4, 1)

Plot the point A (5, -7). From point A, draw AM perpendicular to x-axis and AN perpendicular to y-axis. Write the co-ordinates of points M and N.