[tex]Zadanie\\\\Wspolczynnik\ proporcjonalnosci\\\\a=\frac{y}{x}\\\\a=\frac{5}{20}=\frac{1}{4}=0,25\\\\1.\\\\y=ax=0,25\cdot6=1,5\\\\3.\\\\x=\frac{y}{a}=\frac{20}{0,25}=80\\\\4.\\\\x=\frac{y}{a}=\frac{0,5}{0,25}=2\\\\5.\\\\y=ax=0,25\cdot10=2,5[/tex]
Tabelka
x l 6 l 20 l 80 l 2 l 10 l
y l 1,5 l 5 l 20 l 0,5 l 2,5 l