since the rule for r0, 90º is (-y,x) and it was already applied to form the image, all you have to do is reverse the answer using this formula.
answered: Guest
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 )
answered: Guest
well if he bought them at 5 cedis each sold them at 7 cedis each then he would make a profit of 2 cedis of each book. if in total he made 150 cedis profit that means he sold 75 books. he lost 12 books at the start so that means he originally bought a total of 82 books.
