Use a graphing calculator to determine the exponential regression equation to model the relationship between the decades since 1950 and the population. a. The calculator returns two values, a and b. Write these values below. Round a to the nearest whole number and b to the nearest thousandth, if necessary. . b. The general form of an exponential function is . b. The general form of an exponential function is . Use this general form and the values of a and b from Part (a) to write an exponential function that models Nevada's population growth. c. Use a graphing calculator to graph the data points and the function from Part (b). Sketch the graph and the data points below. Is the exponential function a good approximation of the data? Explain.