Suppose that T is a linear transformation from a vector space V to a vector space W. Furthermore, suppose that {61, 62, 63, 64} is a basis of V and {T(b¹),T(b²), T(b³),T(61)} is a basis of W. • What is the dimension of W? What is the dimension of the image of T"? ⚫ Why is T an isomorphism?