Exercise Three: BMZZ Technologies produces a line of satellite phones. The cost of production for the model is given by the function C(x) shown below - where x is the production volume in units. In addition, if the units sell for $320 per unit, the revenue function R(x) is shown below - where x is the sales volume in units. C(x) = 2,500 + 70 X R(x) = 320 x Based on the given information: (a) as shown in class, find the break-even point algebraically, (b) find the break-even point graphically by plotting on the same Cartesian plane the production volume x, the Cost function C(x), and the Revenue function R(x). (c) Find the break-even point numerically by using Goal Seek as shown in class. (3 Points)