Thomas is cycling from the school to the playground. the equation shows thomas's distance (y), in miles, from the playground after x minutes.

y= 14 - 4x

what does the number fourteen represent?
options:
a) the speed at which thomas is cycling
b) thomas's distance from the playground when he begins cycling
c) thomas's distance from the school when he beings cycling
d) the rate of change of thomas's speed while cycling from school to the playground