An oceanographer measured the length, in meters, of a deepwater wave and its speed, in meters per second. The results are shown in the following table. Wave Length (m) Speed (m/s) 100 14.6 125 13.3 130 16.2 175 16.6 210 21.7 350 24.3 400 25 (a) Find the equation of a linear regression line for the data where wave length is the independent variable, x, and speed is the dependent variable. (Round your numerical values to two decimal places.) (b) Using the equation from part (a), estimate the speed (in meters per second) of a wave that is 200 m long. (Round your answer to one decimal place.) m/s