The height of a maple tree can be modeled by the function h(x) - 2.9log3(x -1) +1.5 where h is the height in metres and ais the age in years. 12. To the nearest tenth of a year, how long should it take a maple tree to grow to 7 m in height? 10. Consider the exponential equation f(x) = a 47 + . If f(0) = 11 and f(1) = 26 then the range of this function is y > If logix = 1.2 and logby = 0.6 then the value of logb b is 0 5.0 0 2.4 0 0.7 6.0 The function y - 5 . 6 9 is reflected about the line y = . What is the equation of the resulting graph? Use the following information to answer the next question The Richter Scale assigns a number, r, to represent the magnitude of an Earthquake. r is calculated by: r - log To Where I is the intensity of the earthquake and I, is a constant. 7. One of the strongest earthquakes on record measured 9.2 on the Richter scale. If this is 6500 times as intense as another earthquake, what is the Richter scale measurement of this other earthquake? 3.8 0 6.4 0 5.4 0 2.8