The function {{MATH_75}} is one-to-one when restricted to the interval {{MATH_76}}. Let {{MATH_77}} be the inverse of this restriction. Find an equation of the line tangent to the graph of {{MATH_78}} at the point {{MATH_79}}. {{CMD_80}} Since {{MATH_81}} we know that {{MATH_82}} is referring to the point on the graph of {{MATH_83}}. In order to find the slope of the line, we must calculate {{MATH_84}}. By the inverse function theorem we know: {{ENV_85}} Since {{MATH_86}}, this gives {{MATH_87}}. An equation of the tangent line can be given as: {{MATH_88}} {{CMD_89}} {{CMD_90}}