State whether the statements are true (T) or false (F).

When the distance is kept fixed, speed and time vary directly with each other.

State whether the statements are true (T) or false (F).

Two quantities x and y are said to vary directly with each other it for some rational number k, xy = k.

State whether the statements are true (T) or false (F).

When the speed is kept fixed, time and distance vary inversely with each other.

State whether the statements are true (T) or false (F).

Length of a side of a square and its area vary directly with each other.

State whether the statements are true (T) or false (F).

Length of a side of an equilateral triangle and its perimeter vary inversely with each other.