Use algebra to find the intersection points of the graphs of the given equations. (See Exa...

Use algebra to find the intersection points of the graphs of the given equations. (See Examples 1 and 2.)

6x - y = 2 and y = 4x + 7

Example 1

Find the break-even point for the company in Example 6.

Example 2

In the situation described in Examples 8 – 10, what is the equilibrium quantity? What is the equilibrium price?