URGENT!!!!

4. The functions f (x)= 1 and g(x) = 3x+1 x+2 are graphed. 4X - 2 a)Use the graph to find the approximate intervals for which x satisfies the inequality -1 3x +1 [A2] x+2 4x-2 f(x) 1g(x) -5 -4 -3 -2 b) Find the intersection point(s) algebraically. [A3] 5. The cost of an appliance whose purchase price is $600 and annual hydro cost is $115 is given by C(n) = 600 +115n n , where C is the annual cost, in dollars, and n is the number of years. a) When will the annual cost of the appliance be $200? Show your work. [A2] b) As n becomes very large, what happens to C? Justify your answer. [A2]