1. Solve the following tasks:
1.13 The cost of railway transportation of cargo per 1 km (AB) is equal to k1 p., In a car (PC) - k2 p. (k1 2). At what point P is necessary to begin construction of the highway, maybe cheaper to deliver cargo from point A to C? It is known that | AB | = a, | BC | = b

2. Carry out a full investigation of these functions and build their schedules.
2.13 y = (x2 - x - 1) / (x2 - 2x)

3. Carry out a full investigation of these functions and build their schedules.
3.13 y = (x + 2) e1- x

4. Find the minimum and maximum values of the function y = f (x) on the interval [a; b]
4.13 y = (x - 1) e-x, [0; 3]

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