pls answer thanks so much

Question 15 (1 point) The equations z - 4 _ (y-1) 2 and 5z + 3y + 4z - 20 = 0: Are parallel Coincide Intersect at one point Are skew linesQuestion 6 (1 point) For the curve: f (2) = Vx-5 the equation of the tangent line when x=9 is Oy = 1 (x- 1) Oy = 1 (x+ 1) Oy= - 2 (x + 1) Oy= -=(x - 1) Question 7 (1 point) If y = 3u2 + 2u and u = Va2 +5, dy dx - would be: (3 v2:2 +5+1) Vx2+5\f