Let X1,X2, . . . , Xn are iid, each with the distribution having pdf f(x; θ1, θ2) = (1/θ2)e−(x−θ1)/θ2, θ1 ≤ x < [infinity], −[infinity] < θ2 < [infinity], zero elsewhere. Find the maximum likelihood estimators of θ1 and θ2.

Part a: sam rented a boat at $225 for 2 days. if he rents the same boat for 5 days, he has to pay a total rent of $480. write an equation in the standard form to represent the total rent (y) that sam has to pay for renting the boat for x days. (4 points)