The following fictitious table shows kryptonite price, in dollar per gram, t years after 2006. t= Years since 2006 0 1 2 3 4 5 6 7 8 9 10 K= Price 56 51 50 55 58 52 45 43 44 48 51 Make a quartic model of these data. Round the regression parameters to two decimal places.

Repeat Example 5 when microphone A receives the sound 4 seconds before microphone B.

Find the equation of the regression line for the following data set. x 1 2 3 y 0 3 4