Using the graph of f complete the following a y b 4 3 2 1 1 3 2 1 2 12 1 Determine whether dy dt is positive or negative given that dx dt is negative O positive O negative 1 3 ii Determine whether dx dt is positive or negative given that dy dt is positive Opositive negative 1 14 2 X 3 X 1 Determine whether dy dt is positive or negative given that dx dt is negative Opositive negative i Determine whether dx dt is positive or negative given that dy dt is positive