Abusiness owner is looking at sales records for the last 10 years. in 2009, he calculated his net profit was $75,000 for the year. in 1999, he did not make a profit, instead making a net loss of $5,000. find the rate of change of his profit from 1999 to 2009

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is

they can either have 0,1, or infinite solutions

step-by-step explanation: