Find a parametrization rt) of the line through the origin whose projection on the xy -plane is a line of slope 9 and on the yz -plane is a line of slope 4 i.e. Δ z}/Δ y} = 4 ). Consider the direction vector \mathbfv} to be ⟨ a, b, c ⟩ .


a) rt) = ⟨ 9t, 4t, 4t ⟩
b) rt) = ⟨ 4t, 9t, 4t ⟩
c) rt) = ⟨ 4t, 4t, 9t ⟩
d) rt) = ⟨ 9t, 4t, 9t ⟩