<p>&Beta;&alpha;&sigma;&iota;&kappa;ή &iota;&delta;έ&alpha; &epsilon;ί&nu;&alpha;&iota;</p> <p>- &nu;&alpha; &alpha;&nu;&alpha;&kappa;&alpha;&lambda;ύ&psi;&omicron;&upsilon;&nu; &omicron;&iota; &mu;&alpha;&theta;&eta;&tau;έ&sigmaf; &tau;&omicron;&nu; &omicron;&rho;&iota;&sigma;&mu;ό &tau;&eta;&sigmaf; ά&rho;&tau;&iota;&alpha;&sigmaf;&nbsp; &kappa;&alpha;&iota; &tau;&eta;&sigmaf; &pi;&epsilon;&rho;&iota;&tau;&tau;ή&sigmaf; &sigma;&upsilon;&nu;ά&rho;&tau;&eta;&sigma;&eta;&sigmaf; &mu;έ&sigma;&alpha; &alpha;&pi;ό &tau;&omicron; &sigma;&chi;&epsilon;&delta;&iota;&alpha;&sigma;&mu;ό &tau;&eta;&sigmaf; &gamma;&rho;&alpha;&phi;&iota;&kappa;ή&sigmaf; &pi;&alpha;&rho;ά&sigma;&tau;&alpha;&sigma;&eta;&sigmaf;.</p> <p>- &sigma;&upsilon;&gamma;&kappa;&epsilon;&kappa;&rho;&iota;&mu;έ&nu;&alpha; &zeta;&eta;&tau;ά&mu;&epsilon; &nu;&alpha; &sigma;&chi;&epsilon;&delta;&iota;&alpha;&sigma;&tau;&epsilon;ί &eta; &gamma;&rho;&alpha;&phi;&iota;&kappa;&eta; &pi;&alpha;&rho;ά&sigma;&tau;&alpha;&sigma;&eta; &mu;&iota;&alpha;&sigmaf; ά&rho;&tau;&iota;&alpha;&sigmaf; &sigma;&upsilon;&nu;ά&rho;&tau;&eta;&sigma;&eta;&sigmaf; &sigma;&tau;&omicron; Geogebra. &Sigma;&chi;&epsilon;&delta;&iota;ά&zeta;&omicron;&nu;&tau;&alpha;&sigmaf; &mu;&iota;&alpha; &epsilon;&upsilon;&theta;&epsilon;ί&alpha; y =k&nbsp; &beta;&rho;ί&sigma;&kappa;&omicron;&upsilon;&mu;&epsilon; &tau;&alpha; &sigma;&eta;&mu;&epsilon;ί&alpha; &tau;&omicron;&mu;ή&sigmaf; &tau;&eta;&sigmaf; &mu;&epsilon; &tau;&eta;&nu; Cf. &Delta;&iota;&alpha;&pi;&iota;&sigma;&tau;ώ&nu;&omicron;&upsilon;&mu;&epsilon; ό&tau;&iota; &tau;&alpha; &sigma;&eta;&mu;&epsilon;ί&alpha; &tau;&omicron;&mu;ή&sigmaf; έ&chi;&omicron;&upsilon;&nu; &alpha;&nu;&tau;ί&theta;&epsilon;&tau;&epsilon;&sigmaf; &tau;&epsilon;&tau;&mu;&eta;&mu;έ&nu;&epsilon;&sigmaf; &gamma;&iota;&alpha; &tau;&iota;&sigmaf; &omicron;&pi;&omicron;ί&epsilon;&sigmaf; &iota;&sigma;&chi;ύ&epsilon;&iota; f(x) = f(-x)=k</p> <p>- &alpha;&nu;ά&lambda;&omicron;&gamma;&eta; &delta;&rho;&alpha;&sigma;&tau;&eta;&rho;&iota;ό&tau;&eta;&tau;&alpha; &gamma;&iota;&alpha; &tau;&omicron;&nu; &omicron;&rho;&iota;&sigma;&mu;ό &tau;&eta;&sigmaf; &pi;&epsilon;&rho;&iota;&tau;&tau;ή&sigmaf; &sigma;&upsilon;&nu;ά&rho;&tau;&eta;&sigma;&eta;&sigmaf;</p> <p>- &tau;έ&lambda;&omicron;&sigmaf; &delta;&iota;&alpha;&pi;&iota;&sigma;&tau;ώ&nu;&omicron;&upsilon;&mu;&epsilon; &tau;&eta; &sigma;&upsilon;&mu;&mu;&epsilon;&tau;&rho;ί&alpha; &tau;&eta;&sigmaf;&gamma;&rho;&alpha;&phi;&iota;&kappa;ή&sigmaf; &pi;&alpha;&rho;ά&sigma;&tau;&alpha;&sigma;&eta;&sigmaf; &tau;&eta;&sigmaf; ά&rho;&tau;&iota;&alpha;&sigmaf; &sigma;&upsilon;&nu;ά&rho;&tau;&eta;&sigma;&eta;&sigmaf; &pi;&omicron;&upsilon; έ&chi;&epsilon;&iota; &tau;&omicron;&nu; ά&xi;&omicron;&nu;&alpha; yy΄&nbsp;&kappa;&alpha;&iota; &tau;&eta;&sigmaf; &pi;&epsilon;&rho;&iota;&tau;&tau;ή&sigmaf; &pi;&omicron;&upsilon; έ&chi;&epsilon;&iota; &kappa;έ&nu;&tau;&rho;&omicron; &sigma;&upsilon;&mu;&mu;&epsilon;&tau;&rho;ά&sigmaf; &tau;&omicron; &Omicron;.</p>