I have 2 columns of data in Excel. One is inputs the other is outputs. I ask Excel to make a graph of that data and to fit the data to a power trendline. Excel does this and it's fine as far as it goes but I'd like to get Mathematica to give me a similar equation for a line.

How do I do that?

If it helps the ordered pairs are: {0.473, 1.1}, {0.4825, 1.15}, {0.492833333333333, 1.2}, {0.503666666666667, 1.25}, {0.513666666666667, 1.3}, {0.5245, 1.35}, {0.533, 1.4}, {0.543166666666667, 1.45}

Excel gives it as y=4.8549x^1.9788