<p>&Mu;&epsilon; &tau;&eta; &beta;&omicron;ή&theta;&epsilon;&iota;&alpha; &epsilon;&nu;ό&sigmaf; &pi;&rho;&omicron;&beta;&lambda;ή&mu;&alpha;&tau;&omicron;&sigmaf; &sigma;&tau;&alpha; &alpha;&nu;ά&lambda;&omicron;&gamma;&alpha; &pi;&omicron;&sigma;ά : &chi;&rho;ό&nu;&omicron;&sigmaf; &omicron;&mu;&iota;&lambda;ί&alpha;&sigmaf; &sigma;&epsilon;<br /> &kappa;&iota;&nu;&eta;&tau;ό &tau;&eta;&lambda;έ&phi;&omega;&nu;&omicron; (x) &ndash; &alpha;&xi;ί&alpha; &sigma;&epsilon; &epsilon;&upsilon;&rho;ώ (y) &epsilon;&pi;&iota;&chi;&epsilon;&iota;&rho;&omicron;ύ&mu;&epsilon; :<br /> &Alpha;. &nu;&alpha; &alpha;&nu;&alpha;&kappa;&alpha;&lambda;ύ&psi;&omicron;&upsilon;&nu; &omicron;&iota; &mu;&alpha;&theta;&eta;&tau;έ&sigmaf; &tau;&eta;&nu; &sigma;&upsilon;&nu;ά&rho;&tau;&eta;&sigma;&eta; y = 0,5x &pi;&omicron;&upsilon; &epsilon;&kappa;&phi;&rho;ά&zeta;&epsilon;&iota; &tau;&eta;&nu;<br /> &alpha;&lambda;&lambda;&eta;&lambda;&epsilon;&pi;ί&delta;&rho;&alpha;&sigma;&eta; &tau;&omega;&nu; &delta;ύ&omicron; &mu;&epsilon;&gamma;&epsilon;&theta;ώ&nu;.<br /> &Beta;. &Tau;&eta;&nu; &kappa;&alpha;&tau;&alpha;&sigma;&kappa;&epsilon;&upsilon;ή &sigma;&tau;&omicron; &lambda;&omicron;&gamma;&iota;&sigma;&mu;&iota;&kappa;ό Geogebra &tau;&eta;&sigmaf; &alpha;&nu;&alpha;&pi;&alpha;&rho;ά&sigma;&tau;&alpha;&sigma;&eta;&sigmaf; &tau;&omega;&nu; &sigma;&eta;&mu;&epsilon;ί&omega;&nu; (x,y)<br /> ώ&sigma;&tau;&epsilon; &nu;&alpha; &phi;&alpha;&nu;&epsilon;ί ό&tau;&iota; &eta; &gamma;&rho;&alpha;&phi;&iota;&kappa;ή &pi;&alpha;&rho;ά&sigma;&tau;&alpha;&sigma;&eta; &epsilon;ί&nu;&alpha;&iota; &epsilon;&upsilon;&theta;&epsilon;ί&alpha; &pi;&omicron;&upsilon; &delta;&iota;έ&rho;&chi;&epsilon;&tau;&alpha;&iota; &alpha;&pi;ό &tau;&eta;&nu; &alpha;&rho;&chi;ή &tau;&omega;&nu;<br /> &alpha;&xi;ό&nu;&omega;&nu;.<br /> &Sigma;&tau;&eta; &sigma;&upsilon;&nu;έ&chi;&epsilon;&iota;&alpha; &mu;&epsilon; &alpha;&phi;&omicron;&rho;&mu;ή &tau;&eta; &sigma;&upsilon;&nu;ά&rho;&tau;&eta;&sigma;&eta; y = 0,5x &theta;&alpha; &mu;&epsilon;&lambda;&epsilon;&tau;ή&sigma;&omicron;&upsilon;&mu;&epsilon; &tau;&eta;&nu; y = &alpha;x &gamma;&iota;&alpha; &alpha;&ne;0 &omega;&sigmaf;<br /> &pi;&rho;&omicron;&sigmaf;:<br /> &Alpha;. &delta;&iota;&epsilon;&rho;&epsilon;ύ&nu;&eta;&sigma;&eta; &tau;&eta;&sigmaf; &mu;&omicron;&rho;&phi;ή&sigmaf; &tau;&eta;&sigmaf; &gamma;&rho;&alpha;&phi;&iota;&kappa;ή&sigmaf; &pi;&alpha;&rho;ά&sigma;&tau;&alpha;&sigma;&eta;&sigmaf; , &tau;&eta;&sigmaf; &mu;&omicron;&nu;&omicron;&tau;&omicron;&nu;ί&alpha;&sigmaf; &kappa;&alpha;&iota; &tau;&omega;&nu;<br /> &alpha;&kappa;&rho;&omicron;&tau;ά&tau;&omega;&nu; &alpha;&nu;ά&lambda;&omicron;&gamma;&alpha; &mu;&epsilon; &tau;&omicron; &pi;&rho;ό&sigma;&eta;&mu;&omicron; &tau;&omicron;&upsilon; &alpha;.<br /> &Beta;. &gamma;&iota;&alpha; &alpha;=1&kappa;&alpha;&iota; &alpha; = -1 &epsilon;&xi;έ&tau;&alpha;&sigma;&eta; &tau;&omega;&nu; &epsilon;&iota;&delta;&iota;&kappa;ώ&nu; &mu;&omicron;&rho;&phi;ώ&nu; &delta;&iota;&chi;&omicron;&tau;ό&mu;&omega;&nu; &tau;&omega;&nu; &gamma;&omega;&nu;&iota;ώ&nu;.<br /> &Gamma;. &tau;&eta;&nu; έ&nu;&nu;&omicron;&iota;&alpha; &tau;&eta;&sigmaf; &kappa;&lambda;ί&sigma;&eta; &tau;&eta;&sigmaf; &epsilon;&upsilon;&theta;&epsilon;ί&alpha;&sigmaf;.</p>