Q6 Suppose g(0, 2) = 15 and g(4, 1) = 17. a What is the distance from (0, 2) to (4, 1)? b Approximate the rate of change of g at (0, 2) travelling toward (4, 1). C If you wanted to express the previous rate of change as an approximation of Dog(0, 2), what would the unit vector i be