is {{CMD_107}}{{CMD_108}}positive{{CMD_109}}{{CMD_110}}negative{{CMD_111}}{{CMD_112}}zero{{CMD_113}}{{CMD_114}} on the interval {{MATH_115}}.{{CMD_116}} {{MATH_117}} is {{CMD_118}}{{CMD_119}}positive{{CMD_120}}{{CMD_121}}negative{{CMD_122}}{{CMD_123}}zero{{CMD_124}}{{CMD_125}} on the interval {{MATH_126}}.{{CMD_127}} {{MATH_128}} is {{CMD_129}}{{CMD_130}}positive{{CMD_131}}{{CMD_132}}negative{{CMD_133}}{{CMD_134}}zero{{CMD_135}}{{CMD_136}} on the interval {{MATH_137}}.{{CMD_138}} {{CMD_139}} Make a correct choice.{{CMD_140}} The function {{MATH_141}} {{CMD_142}}{{CMD_143}}has{{CMD_144}}{{CMD_145}}does not have{{CMD_146}}{{CMD_147}} an inflection point at {{MATH_148}}, because the sign of {{MATH_149}} {{CMD_150}}{{CMD_151}}changes{{CMD_152}}{{CMD_153}}does not change{{CMD_154}} {{CMD_155}} at {{MATH_156}}.{{CMD_157}} The function {{MATH_158}} {{CMD_159}}{{CMD_160}}has{{CMD_161}}{{CMD_162}}does not have{{CMD_163}}{{CMD_164}} an inflection point at {{MATH_165}}, because the sign of {{MATH_166}} {{CMD_167}}{{CMD_168}}changes{{CMD_169}}{{CMD_170}}does not change{{CMD_171}} {{CMD_172}} at {{MATH_173}}.{{CMD_174}} {{CMD_175}} {{CMD_176}} {{CMD_177}} {{CMD_178}} {{CMD_179}} {{CMD_180}} {{CMD_181}} {{CMD_182}} {{CMD_183}}