In Exercises 16 and 17, write a rule for 9 described by the transformations of the graph of f. 16. Let g be a vertical shrink by a factor of %, followed by a translation 3 units right of the graph of f(x) = \\jx 5. 17. Let g be a reection in the x-axis, followed by a translation 2 units down of the graph of f(x) = SJ; + 3. In Exercises 18 and 19, use a graphing calculator to graph the equation of the parabola. Identify the vertex and the direction that the parabola opens. 13. %y2 = x 19. 3y2 = x+ 6 In Exercises 20 and 21, use a graphing calculator to graph the equation of the circle. Identify the radius and the intercepts. 20. x2+y2=l6 21. 25y2=x2