ind the x-value(s) where the graph does not have a derivative. -10-8-6-4-2246810-22468xy A coordinate system has a horizontal x-axis labeled from negative 10 to 10 in increments of 1 and a vertical y-axis labeled from negative 2 to 8 in increments of 1. From left to right, a curve falls at an decreasing rate passing through the point (negative 2,3.1), is horizontal when passing through the point (negative 1,3), then falls at an increasing rate passing through the point (0,2.9) to the point (1,2.2), then rises at a decreasing rate passing through the point (2,2.9), is horizontal when passing through the point (3,3), then rises at an increasing rate, passing through the point (4,3.1). All coordinates are approximate. Question content area bottom Part 1 The x-value(s) where the function does not have a derivative is/are xequals=enter your response here. (Use a comma to separate answers as needed.)