Math Pre-Calculcs 30 please DO NOT provide website as an answer to see the grahp or any other kind of solution cuz it never works for me..thank you

Initials: (3 ) 6. Given the functions f (x) = x+3 and g(x) =_ what is the simplified form of (8 . f ) (x ) ? (3) 7. If f (x) = -3x-1 and g(x) = vx+5, write the combined function h(x) = / * - and g (x ) rationalize the denominator. (5) 8. Given the functions f (x)=x2 and g(x) =-3, sketch the graph of the combined function h (x ) = f (x) - 8(x)