Essay
A ball is thrown downward from a tall building with an initial velocity of 10 meters per second (m/sec). According to the laws of physics, if you let y denote the velocity of the ball after x seconds, y = 10 + 9.8x. Determine b0 and b1 for this linear equation. Determine the velocity of the ball after 1, 2, 3, and 4 seconds. Use these four points to graph the linear equation y = 10 + 9.8x. Use the graph to estimate visually the velocity of the ball after 2.5 seconds. 
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