Find linear functions f and g that model the distances that Jade and Jari travel as functions of t (in minutes).
a) f(t) = mt + b, g(t) = nt + c
b) f(t) = at² + bt, g(t) = ct + d
c) f(t) = pt, g(t) = qt²
d) f(t) = rt + s, g(t) = ut + v