# Question #672cd

##### 1 Answer

Feb 24, 2017

#### Explanation:

Slope-intercept form of the equation of a straight line is

Do the same for the other equation:

Now plot the graphs.

The break-even point can be found from the point of intersection of the the two lines.

graph{(-x-y+4)(x/4-y+14)=0 [-21.75, 18.25, -2.72, 17.28]}