18+15=33 (a) An economist believes there is a linear relationship between the market price of a particular commodity and the number of units suppliers of the commodity are willing to bring to the marketplace. Two sample 2 observations indicate that when the price equals $15 per unit, the weekly supply equals 30,000 units; and when the price equals $20 per unit, the weekly supply equals 48,000 units. (i) If price per unit, p, is plotted on the horizontal axis and the quantity supplied q is plotted on the vertical axis, determine the slope-intercept form of the equation of the line which passes through these two points. (ii) Interpret the slope of the equation in this application. (it) Predict the weekly supply if the market price equals $25 per unit. (b) Global Insurance Company has four salespeople working in Hill town. The number of policies sold during the last month is given in matrix A, as O'Malley Capont Stromberg Deutsch 8 7 6 81 Automobile 6 9 11 5 Life A= 4 3 2 0 Health 0 2 1 3) Homeowners 1) Let S= [1 1 1 1). Find SA and interpret its elements. ii) Find AS and interpret its elements