The answer is D. The triangles have proportional sides (the triangle on the left has sides that are 4 times that of the triangle on the left). Since the triangles have proportional sides, the angles given will also be equal. Thus, we can show their similarity through both the SSS and SAS similarities.
Given: f(x)=(2x-2)/4 find f^-1(3)? we need to find the inverse of f(x), so x=(2y-2)/4 2y-2=4x y-1=2x y=2x+1 so, then f^-1(x)=2x+1 f^-1(3)=2(3)+1 =6+1 =7 so, the answer is 7
