A is the point (0, 4) and B is the point (8, 0). The line L₁ is parallel to the x-axis. The line L₂ passes through A and B.
(a) Write down the equation of L₁.
(b) Find the equation of L₂ in the form y=mx+c.
(c) C is the point (2, 3). The line L₁ passes through C and is perpendicular to L₂. Show that the equation of L₁ is y=2x-1.