The table shows the minimum wage for three different years ...

766 CHAPTER 11 QUADRATIC FUNCTIONS AND EQUATIONS
Year 1940 1968 1997
Wage ($) 0.25 1.60 5.15
Source: Bureau of Labor Statistics.
GROUP ACTIVITY
WORKING WITH REAL DATA
Directions: Form a group of 2 to 4 people. Select someone to record the group’s responses for this activity. All members of the group should work cooperatively to answer the questions. If your instructor asks for the results, each member of the group should be prepared to respond.
Minimum Wage The table shows the minimum wage for three different years.
(a) Make a scatter plot of the data in the viewing rectangle [1930, 2010, 10] by [0, 6, 1].
(b) Find a quadratic function given by that models the data.
(c) Estimate the minimum wage in 1976 and compare it to the actual value of $2.30.
(d) Estimate when the minimum wage was $1.00.
(e) If current trends continue, predict the minimum wage in 2009. Compare it to the projected value of $7.25.