In the late 1920s Edwin P. Hubble (1889-1953) determined both the distance to several galaxies and the

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In the late 1920s Edwin P. Hubble (1889-1953) determined both the distance to several galaxies and the velocity at which they were receding from Earth. Four galaxies with their distances in light-years and velocities in miles per second are listed in the table.image


(a) Let x be distance and y be velocity. Plot the points in [-100, 1800, 100] by [-1000, 28000, 1000]. 


(b) Find the least-squares regression line. 


(c) If the galaxy Hydra is receding at a speed of 37,000 miles per second, estimate its distance. 

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