[填空题]
The diagram below showj tml7chmkq51riu /5 .q hcn49s the st68stkx.cslf w -nz*i8 raight lines $L_1$1 and $L_2$.
1.Find:
(1)the gradient of $L_1$; $mL_1$ =
(2)the equation of $L_1$, giving your answer in the form y=mx+c. m = c =
The equation of $L_2$ is x−2y=0. y =
2.Find the area of the shaded triangle. A =