Question 15 (1 point) Four exponential functions are given by the equations y = 2(3)*, y = 7(0.25)*, y = 0.5(7)*, y = (1/3)*. The curve that increases most sharply has a base of A/Question 14 (1 point) An antique painting has been appreciating at a rate of 11%/year since it was purchased in the year 1955. In the year 2000 the painting was worth $125000. The value of the painting, to the nearest dollar, that it was purchased for in the year 1955 was $ AQuestion 12 (1 point) The domain of the exponential function y = = (5)* is Oal {yly E R} Ob) {x x > 0, x E R) O c { yly > 0, y ER}Question 11 (1 point) A student saved $3500 from a summer job. The student invests this money in an investment at 12%/a compounded monthly. A function that models the growth of the investment is y = 3500(1. 01) , where y represents the value of the investment after x months. The number of months that it will take the investment to earn at least $600 in interest is A/