Here we have unlabeled graphs of {{MATH_299}}, {{MATH_300}}, and {{MATH_301}}: {{CMD_302}} {{ENV_303}} {{CMD_304}} Identify each curve above as a graph of {{MATH_305}}, {{MATH_306}}, or {{MATH_307}}. {{COMMENT_308}} {{COMMENT_309}} {{CMD_310}} {{COMMENT_311}} Here we see three curves, {{MATH_312}}, {{MATH_313}}, and {{MATH_314}}. Since {{MATH_315}} is {{CMD_316}}{{CMD_317}}positive{{CMD_318}}{{CMD_319}}negative{{CMD_320}}{{CMD_321}}increasing{{CMD_322}}{{CMD_323}}decreasing{{CMD_324}}{{CMD_325}} when {{MATH_326}} is positive and {{CMD_327}}{{CMD_328}}positive{{CMD_329}}{{CMD_330}}negative{{CMD_331}}{{CMD_332}}increasing{{CMD_333}}{{CMD_334}}decreasing{{CMD_335}}{{CMD_336}} when {{MATH_337}} is negative, we see {{MATH_338}} Since {{MATH_339}} is increasing when {{MATH_340}} is {{CMD_341}}{{CMD_342}}positive{{CMD_343}}{{CMD_344}}negative{{CMD_345}}{{CMD_346}}increasing{{CMD_347}}{{CMD_348}}decreasing{{CMD_349}}{{CMD_350}} and decreasing when {{MATH_351}} is {{CMD_352}}{{CMD_353}}positive{{CMD_354}}{{CMD_355}}negative{{CMD_356}}{{CMD_357}}increasing{{CMD_358}}{{CMD_359}}decreasing{{CMD_360}}{{CMD_361}}, we see {{MATH_362}} Hence {{MATH_363}}, {{MATH_364}}, and {{MATH_365}}. {{CMD_366}} {{CMD_367}}