Given this number line, CA = ?

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

What fraction is equivalent to 0.46464646··· a. 46⁄999 b. 46⁄100 c. 46⁄99 d. 23⁄50

Which best describes the function on the graph? direct variation; k = −2 direct variation; k = -1/2 inverse variation; k = −2 inverse variation; k = -1/2