Solve for x given the equation square root x+9-4=1

 x=-4

Step-by-step explanation:

x +9 -4 = 1    first combine like terms on the the left side to get

x + 5 = 1   now subtract  5 from both sides  

     -5  -5

x= -4  

the image of (6, 9) under a dilation is (4, 6). the scale factor is