Equation with time dependent variable

Hi, I need to solve this equation y(x)=2*exp(-x)/(p*n)

In which p is a range of values already given and n is a constant that I have already defined, and x = time. How can I define x to be time to solve this equation? y is said to be a function of p and n

Answer 1

[bio lim]

p = -10:10; % range of values
n = 2; % constant

for j = 1:length(p) % We find y at each, p
  for t = 1:10 % time loop
    y(t,j)=2*exp(-t)/(p(j)*n)
  end
end