# Question: 2 the following table shows the market share of electricity...

###### Question details

2. The following table shows the market share of Electricity Inc as a percentage of the total energy production in a city by year.

Year Market Share

1980 17.0%

1985 18.9%

1990 20.0%

1995 20.8%

2000 20.1%

2005 17.4 %

2010 16.3 %

Use quadratic regression to find a mathematical model that describes the relationship between year and market share. Use EXCEL to draw a graph of this relationship with the trend curve.

3. Use the revenue and cost functions:

R(x) = x(2,000 – 60x)

C(x) = 4000 + 500 x

- Find the break even points.
- For what values of x will a loss occur? A profit?