The position vectors of the points A, B, C are (0,2,-3), (3,3,-3), (-9,2,6) respectively. Given that A, B, C lies on plane π, show that the equation of π is r • (1,-3,1) = -9.
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Select the correct answer. employee earnings per month($) 1 1,200 2 2,600 3 1,800 4 1,450 5 3,500 6 2,800 7 12,500 8 3,200 which measure of spread is best for the data in the table? a. range b. quartiles c. interquartile range d. mean absolute deviation