x+2 Use the sliders to set a = 2 and c = 2 and graph the function f(x) =- Slide the b-slider to various values and observe the changes in the graph of f(x). x" + bx+2 Complete parts 1 and 2 below. Use the interactive figure to find your answer. Use the left and right arrow keys to move along a slider as needed. Click here to launch the interactive figure. Part 1: What value(s) of b result in a graph with a single hole? b= (Use a comma to separate answers as needed.)