2. Let f ( x) = 7 x + 3 and g (x) = 4x-5. Find ( f + 9) (x) ( f t g ) ( x ) , (fg ) ( x ) , and ( a ) ( x ) . Give the comain of each Simplify your answer ( f + g ) ( x ( f - q ) (x ) = fa) (x ) = g ) ( x ) = The domain of f ty is ( interval notation ) The domain of f- g is The domain of fg vis The domain of + is