The scale of a map is 1:25000. (a)

Find the actual length of a path

which on the map is 1.2 cm long.

(b)

Find the length on the map of a road

which is 2 km long.

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )

in my opinion , its hazel