Part II: Graphing (20 pt) You will be given a data set like the one below in the laboratory on the day of the performance task. You will be required to graph the data by hand using the proper format and answer the questions below using a graphing calculator. Use this set of data for practice. 1. Use a piece of graph paper and plot the following data by hand. Be sure it is in the correct and complete format.

Diameter of Pt wire in inches (D) Mass in grams of wire per foot (M) 0.0321 3.52 0.0375 4.80 0.0440 6.60 0.0501 8.56 0.0525 9.50 0.0660 15.0 0.0750 19.3 0.0831 23.7 0.1025 36.0

2. Would you describe the resulting plot as showing a: (circle one below) a) linear relationship between the variables b) power relationship between the variables.

3. Using the graphing calculator, do the appropriate regression and determine the regression equation for the variables.

4. Write the equation for the relationship between diameter of a Pt wire in inches and the mass of the wire in grams per foot of wire in terms of the variables