II. State whether the following problems, equations or graphs represent direct variation (dv), direct square variation (dsv) or inverse variation (lv). 1.y = kx 3.d = rt k 4. r 10. A d =-=-4 = 2. y = X 5. Bus fares vary with the distance travelled. 6. The area of the circle varies directly as the square of the diameter. 7. The number of steps you need to take to walk 20 meters depends on the length of your step.