You will compare profit functions for different companies from selling smart phones. X-axis = Number of Smart Phones sold (in millions) = g (for galaxy phone)

y-axis = Profit (in millions of dollars) = P(g)

The line above shows the profit from selling tablets for the Samsung Galaxy Phone

1a. Label the line as “Samsung”, the x-axis and the y-axis.

b. Describe the key features of the graph. Key features include concavity, x and y-intercepts and the vertex.

c. Is the vertex a max. or min. point? Describe what the vertex means in terms of this problem.

d. Create an equation in completed the square form. Then translate this to standard form.

Standard form  f(x) =