{"id":7682,"date":"2016-03-22T12:58:51","date_gmt":"2016-03-22T11:58:51","guid":{"rendered":"http:\/\/www.matematicaok.it\/?p=7682"},"modified":"2016-03-22T16:30:03","modified_gmt":"2016-03-22T15:30:03","slug":"esercizio-26-fascio-di-parabole","status":"publish","type":"post","link":"https:\/\/www.matematicaok.com\/?p=7682","title":{"rendered":"Esercizio 26 &#8211; Fascio di Parabole"},"content":{"rendered":"<p>Dato il fascio di parabole di equazione y= k x<sup>2<\/sup> + (3 &#8211; 3k) x + 2k &#8211; 8 determinarne<br \/>\na) le generatrici;<br \/>\nb) i punti base;<br \/>\nc) le parabole degeneri.<\/p>\n<p>Determinare inoltre per quali valori di k:<br \/>\nd) la parabola del fascio che passa per P( 3 ; -1);<br \/>\ne) per cui le parabole del fascio hanno il vertice nel primo o nel quarto quadrante.<\/p>\n<p><a href=\"http:\/\/www.matematicaok.it\/wp-content\/uploads\/2016\/03\/Es26a_Parabole.jpg\" rel=\"attachment wp-att-7686\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-7686\" src=\"http:\/\/www.matematicaok.it\/wp-content\/uploads\/2016\/03\/Es26a_Parabole-1000x1024.jpg\" alt=\"Fascio di Parabole\" width=\"677\" height=\"693\" srcset=\"https:\/\/www.matematicaok.com\/wp-content\/uploads\/2016\/03\/Es26a_Parabole-1000x1024.jpg 1000w, https:\/\/www.matematicaok.com\/wp-content\/uploads\/2016\/03\/Es26a_Parabole-293x300.jpg 293w, https:\/\/www.matematicaok.com\/wp-content\/uploads\/2016\/03\/Es26a_Parabole-768x786.jpg 768w, https:\/\/www.matematicaok.com\/wp-content\/uploads\/2016\/03\/Es26a_Parabole.jpg 1255w\" sizes=\"auto, (max-width: 677px) 100vw, 677px\" \/><\/a> <a href=\"http:\/\/www.matematicaok.it\/wp-content\/uploads\/2016\/03\/Es26b_Parabole.jpg\" rel=\"attachment wp-att-7687\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-7687\" src=\"http:\/\/www.matematicaok.it\/wp-content\/uploads\/2016\/03\/Es26b_Parabole-724x1024.jpg\" alt=\"Fascio di Parabole\" width=\"677\" height=\"958\" srcset=\"https:\/\/www.matematicaok.com\/wp-content\/uploads\/2016\/03\/Es26b_Parabole-724x1024.jpg 724w, https:\/\/www.matematicaok.com\/wp-content\/uploads\/2016\/03\/Es26b_Parabole-212x300.jpg 212w, https:\/\/www.matematicaok.com\/wp-content\/uploads\/2016\/03\/Es26b_Parabole-768x1086.jpg 768w, https:\/\/www.matematicaok.com\/wp-content\/uploads\/2016\/03\/Es26b_Parabole.jpg 1255w\" sizes=\"auto, (max-width: 677px) 100vw, 677px\" \/><\/a> <a href=\"http:\/\/www.matematicaok.it\/wp-content\/uploads\/2016\/03\/Es26_Grafico.png\" rel=\"attachment wp-att-7685\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-7685\" src=\"http:\/\/www.matematicaok.it\/wp-content\/uploads\/2016\/03\/Es26_Grafico.png\" alt=\"Grafico del Fascio di Parabole\" width=\"762\" height=\"978\" srcset=\"https:\/\/www.matematicaok.com\/wp-content\/uploads\/2016\/03\/Es26_Grafico.png 762w, https:\/\/www.matematicaok.com\/wp-content\/uploads\/2016\/03\/Es26_Grafico-234x300.png 234w\" sizes=\"auto, (max-width: 762px) 100vw, 762px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dato il fascio di parabole di equazione y= k x2 + (3 &#8211; 3k) x + 2k &#8211; 8 determinarne a) le generatrici; b) i punti base; c) le parabole degeneri. Determinare inoltre per quali valori di k: d) la parabola del fascio che passa per P( 3 ; -1); e) per cui le parabole del fascio hanno il vertice nel primo o nel quarto quadrante.<\/p>\n","protected":false},"author":1,"featured_media":7685,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false},"version":2}},"categories":[127,128,139],"tags":[],"class_list":["post-7682","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-esercizi-svolti","category-geometria-analitica","category-parabola"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/www.matematicaok.com\/wp-content\/uploads\/2016\/03\/Es26_Grafico.png","jetpack_shortlink":"https:\/\/wp.me\/p85Wmq-1ZU","_links":{"self":[{"href":"https:\/\/www.matematicaok.com\/index.php?rest_route=\/wp\/v2\/posts\/7682","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.matematicaok.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.matematicaok.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.matematicaok.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.matematicaok.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7682"}],"version-history":[{"count":3,"href":"https:\/\/www.matematicaok.com\/index.php?rest_route=\/wp\/v2\/posts\/7682\/revisions"}],"predecessor-version":[{"id":7688,"href":"https:\/\/www.matematicaok.com\/index.php?rest_route=\/wp\/v2\/posts\/7682\/revisions\/7688"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.matematicaok.com\/index.php?rest_route=\/wp\/v2\/media\/7685"}],"wp:attachment":[{"href":"https:\/\/www.matematicaok.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7682"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.matematicaok.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7682"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.matematicaok.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7682"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}