Why is low vapor pressure called volatile

The higher the vapor pressure of a compound, the more volatile it is. Higher vapor pressure and volatility translate into a lower boiling point. Increasing temperature increases vapor pressure, which is the pressure at which the gas phase is in equilibrium with the liquid or solid phase

Explanation:

Speed is equal to distance divided by time, therefore on a distance time graph, the speed is the gradient of a line. To find the gradient, find two points on the graph, (x1, y1) and (x2, y2).