Question

Georges asked five of his friends how long they studied for the last math test and what grade they received. He found a linear regression equation for the data to be y = 9.6x + 65.8. What does the 65.8 mean in the context of this equation? A) If they studied 0 hours they would earn a 65.8. B) The lowest grade of his five friends was a 65.8. C) The lowest grade they could receive on the test was a 65.8. D) For every hour they studied their grade would go up 65.8 points.

Answer 1

The answer is A i took the test

Answer 2

Assuming y represents the grade earned and x represents hours studied, the fact that y=65.8 when x=0 means ...
  A) If they studied 0 hours they would earn a 65.8.