The point Ps1, 0d lies on the curve y sins10yxd. (a) If Q is the point sx, sins10yxdd, find the slope of the secant line PQ (correct to four decimal places) for x 2, 1.5, 1.4, 1.3, 1.2, 1.1, 0.5, 0.6, 0.7, 0.8, and 0.9. Do the slopes appear to be approaching a limit? (b) Use a graph of the curve to explain why the slopes of the secant lines in part (a) are not close to the slope of the tangent line at P. (c) By choosing appropriate secant lines, estimate the slope of the tangent line at P.

Chapter 5: Thermochemistry 5.1 Energy Basics Thermochemistry – the study of measuring the amount of heat absorbed or released during a chemical reaction or a physical change Energy – the capacity to supply heat or do work Work (w) – the process of causing matter to move against an opposing force Potential energy – the energy an object has because of its relative position,...