What does this question mean? How do I calculate this?

This have two positive examples (blue circles) x1 = [h,1], x2 = [0,3] and two negative examples (red crosses) x3 = [0,0], x4 = [2,2]. We can see it has four 2dimensional data points. h is a parameter and 0 S h S 3. (a) What is the range of h so those points are linearly separable? (b) Does the m slope of the decision boundary change as a function of h when the data points are linearly separable? (c)Note that The margin is a linear function of h, represent the margin achieved by the maximum margin boundary as a function of h. (0.3) 0 0.5 1 1.5 2 2.5 3