Consider the graph given on the right and answer the questions below. -2 2 4 6 8 -2 2 4 6 8 x y font size increased by 4 left bracketfont size increased by 4 right parenthesis A coordinate system has a horizontal x-axis labeled from negative 3 to 8 in increments of 1 and a vertical y-axis labeled from negative 3 to 8 in increments of 1. A portion of a parabola that opens downward has vertex (3.5, 6), a closed dot endpoint at (2, 1), and an open circle endpoint at (5, 1). A horizontal line segment begins with a left bracket at (2, 0) and ends with a right parenthesis at (5, 0). Question content area bottom Part 1 The shaded set of numbers shown on the x-axis can be expressed in interval notation as enter your response here. (Type your answer in interval notation.)