The figure has a tangent line drawn at a labeled point. on ) thousand chips I (1.95 , 7.7 V t hours 0.5 1.0 1.5 2.0 2.5 3.0 (a) Estimate a second point on the tangent line. (Round your answer to two decimal places.) o= (b) Calculate the rate of change of the function at the labeled point. (Round your answer to one decimal place.) I: thousand chips per hour (c) Calculate the percentage rate of change of the function at the labeled point. (Round your answer to three decimal places.)