Question 7 (1 point) if g(a) = 6 - a2, determine g(4). A Question 8 (1 point) If h(a) = -3ac + 1, then determine the value of x if h (ac) = 22. X=Question 9' {1 point] The following relation is linear. Find the values of a and o. Question 10 (3 points) A large water tank is being emptied, as illustrated in the graph below. The rate at which the water empties from the tank is constant. Emptying a Water Tank 6000 IV 4000 Volume (!) 2000 0 40 80 120 Time (min) Determine the following: a) Identify the independent and dependent variables. b) Determine the rate of change (including units) of the relation and describe what it represents. c) Determine the domain and range, written in either set notation or interval notation.Question 11 (3 points) The graph below shows the altitude, A feet, of a small plane as it descends, as a function of time, t minutes. A 1200 800 A =g(D) Altitude (it.) 400 0 Time (min) Answer each of the following: a) Write an equation in function notation form to represent the scenario in the graph, where A represents the altitude of the plane and t represents time the plane has been flying. b) What does the y-intercept of the graph represent? c) Using your equation from part a), How long does it take for the plane to reach an altitude of 400 feet