Question 1 (1 point) If f(x) = = and g(x) = x3, what is the domain of (fx g)(x)? O {x ER} OfxER|X* -1} O{xER| x# 1} Question 2 (1 point) The radius of a cylinder was 3 centimetres, while the height of the cylinder was 10 centimetres, but both the radius and the height have begun increasing with time. The radius of the cylinder in centimetres can be defined by the function (t) = 3 + t, where tis the time elapsed in minutes, while the height of the cylinder in centimetres can be defined by the function h(t) = 10 + t. Which of these functions represents the volume of the cylinder in cubic centimetres? OnA = 12 + 13t+ 30 Out) = $ 12 + 13xt + 30x Out = 13 + 16+2 + 69t+90 Out) = x 13 + 16xt2 + 69xt+ 90x Question 3 (1 point) If f(x) = 4x - 9 and g(x) = 3x + 4, what is (fx g)(-2)? 17 O 34 36 70Question 4 (1 point) A salesperson's salary consists only of commissions, and she receives a 6 percent commission on all of her sales. As an extra incentive, this month her actual sales will be increased by 20 percent, and she will receive a commission on the adjusted amount. Which of these represents the salesperson's salary this month as a function of her actual sales? ('1) C(s) = 0.0125 (:2. C(5) = 00725 C} C(s) = 0.125 GS) = 0.725 Question 5 (1 point) If the amount of liquid in cubic metres in a cylindrical container is increasing at a constant rate, which of these would best model the height to which the liquid has risen within the container as a function of time? A linear function A quadratic function A sinusoidal function An exponential function Question 6 (1 point) Which of these is an example of two functions x) and g()() such that f(x) 2 g(x) when x e [1, 1]? C) fix) = x2 - 3: M = -2lxi Ci) fix) = -2le; gm = x2 + 3 C} fix) = x2 + 3; g(x) = 2|X| C) ax) = -2le; g(x> = x2 + 3 Question 7 (1 point) If a situation requires an exponential model in the form x) = ab\Question 10 (1 point) If h()() = (2 1 932, and if h()() = fig(X)), which of these statements could be correct? I. iii) x) = 1%: M = 2x 9 (3. x) = 2x 9; gm = is I .;:jjj;. ax) = 1 :g(x) = x2 Ear9 .;::::. x) = x2; g(X) = 2x 9