Suppose the graph of f is given. Describe how the graph of each function can be obtained from the graph of f.(a)y = f(9x) - 6shrink horizontally by a factor of, then shift right 6 unitsO stretch horizontally by a factor of 9, then shift down 6 unitsO shrink horizontally by a factor ofthen shift down 6 unitsO stretch vertically by a factor of 9, then shift up 6 unitsO shrink vertically by a factor ofthen shift up 6 units9'(b) y = 9f (1-x)O shrink horizontally by a factor of -11/13O shrink horizontally by a factor ofthen shrink vertically by a factor of1/1, then stretch vertically by a factor of 9O stretch horizontally by a factor of 9, then stretch vertically by a factor of 91O stretch horizontally by a factor of 9, then shrink vertically by a factor of 9O There is no change.X

O stretch horizontally by a factor of 9, then shift down 6 units O shrink horizontally by a factor of, then shift down 6 units O stretch vertically by a factor of 9, then shift up 6 units O shrink vertically by a factor of 1, then shift up 6 units 1 = 9f(-1/2 x ) (b) y shrink horizontally by a factor of, then shrink vertically by a factor of - 1/ O shrink horizontally by a factor of then stretch vertically by a factor of 9 O stretch horizontally by a factor of 9, then stretch vertically by a factor of 9 1 O stretch horizontally by a factor of 9, then shrink vertically by a factor of O There is no change.