Note di Matematica

In allegato un'esercitazione da svolgere.

Buon pomeriggio professore, potrebbe mettere i risultati?

$1a)k=10; \hspace{3mm}1b)k=-\dfrac{16}{3}; \hspace{3mm} 1c)k=\dfrac{7}{3}; \hspace{3mm}1d)k=\dfrac{4}{5}; \hspace{3mm}1e)k=-\dfrac{3}{3}; \hspace{3mm}1f)k=\dfrac{1}{2}; \hspace{3mm}1g)k=\dfrac{3}{2};$


$2a) C\equiv(9,3);\hspace{3mm}D\equiv(6,-2); \hspace{3mm}2b) x-4y+3=0$


$3a) 3x-y=0;\hspace{3mm};3b)P\equiv(8,4); \hspace{3mm}3c) P_1\equiv\left(\dfrac{21}{7}, -1\right);\hspace{3mm} P_2\equiv\left(\dfrac{11}{7}, -\dfrac{17}{7}\right) \hspace{3mm}3d) P_1\equiv\left(0, -4\right);\hspace{3mm} P_2\equiv\left(5, 1\right); \hspace{3mm}3e) P\equiv\left(2, -1\right)$


$4)k_1=\dfrac{2}{9}; \hspace{3mm}k_2=\dfrac{4}{3}$



$5)k_1=-2; \hspace{3mm}4b)k_2=3$