Среди прямых найти параллельные и перпендикулярные:<br />а) 3х-2у+7=0; b) 6x-4y-9=0; c) 6x+4y-5=0; d) 2x+3y-6=0.<img src="/close/store/examRes/%7BEBFF23AA-45EF-4A1A-8DA0-B2AD6EEBFD6B%7D/%D0%BE%D1%82%D0%B2%D0%B5%D1%82%205.8.1.bmp" /><img src="/close/store/examRes/%7BEBFF23AA-45EF-4A1A-8DA0-B2AD6EEBFD6B%7D/%D0%BE%D1%82%D0%B2%D0%B5%D1%82%205.8.2.bmp" /><img src="/close/store/examRes/%7BEBFF23AA-45EF-4A1A-8DA0-B2AD6EEBFD6B%7D/%D0%BE%D1%82%D0%B2%D0%B5%D1%82%205.8.3.bmp" /> <img src="/img/a5/f9167f0b8841d85bad69ca7fba.bmp" />, <img src="/img/27/e2b346bb9934eafa39ffadbcaa.bmp" />, <img src="/img/df/b553c63ecf6703e0f4bbbbe7c4.bmp" />