1.  Participants are being eliminated every 10 minutes from a gaming competition. The data is shown in the chart at the right, with a calculator scatter plot below the chart.
a) Examine the scatter plot. Which type of regression model will be the best fit for this data?

Choose:	linear regression
	exponential regression
	quadratic regression

b) Which choice is the regression equation?

Choose:	y = 112.26(0.93)x
	y = -0.87x + 46.33
	y = 0.03x2 - 2.65x + 70

  2.  Kevin is biking to visit his friend who lives in a nearby town. The data is shown in the chart at the right, with a calculator scatter plot below the chart.
a) Examine the scatter plot. Which type of regression model will be the best fit for this data?

Choose:	linear regression
	exponential regression
	quadratic regression

Choose:	y = 1.80(1.41)x
	y = 2x + 2
	y = 2x

  3.  Two data sets are being compared. The data is shown in the chart at the right, with a calculator scatter plot below the chart.
a) Examine the scatter plot. Which type of regression model will be the best fit for this data?

Choose:	linear regression
	exponential regression
	quadratic regression

Choose:	y = 5(1)x
	y = 0x + 6
	y = x2 - 8x + 18