y 2x 4 9 y 9 2x 4 y 9 3x 4 y 4x 9 y 9 24 x y

y = 2(x - 4) + 9 y + 9 = -2(x - 4) y - 9 = -3(x - 4) y = 4x + 9 y = 9 - 2(4 - x) y = 9 - 4 - 8x/4 These three lines pass through the same point.

Solution

solution:

line 1 = y=2x+1

line 2= y=-2x-1

line 3= y=-3x+21

line 4= y=4x+9

line 5   y=2x+1

line 6 y=2x+8

hence not three lines but only two lines

line 1 and line 5 pass through the same point