For the second part of the problem, we simply plug {{MATH_142}} and {{MATH_143}} into the formula above, hence the slope of the tangent line at {{MATH_144}} is {{MATH_145}}. We've included a plot for your viewing pleasure: {{CMD_146}} {{ENV_147}} {{COMMENT_148}} {{COMMENT_149}} {{COMMENT_150}} {{CMD_151}} {{CMD_152}}