Question 1 (2 points) How many numbers are needed to represent a 2D vertex? Select one. Two One O O Three Four Question 2 (2 points) In a 2D 100 by 100 OpenGL screen, what are the coordinates of the center point? Select one. O 0,50,50 100, 100,0 50, 500 0.0.0 Question 3 (2 points) Where on the screen is the point (0,0,0) Select one. Lower left Upper left Upper right Lower right Middle Question 4 (2 points) The first argument/parameter in the glVertexAttribPointerl) function represents which of the following? Select one. The index position of vertex or color data The number of vertices a shape will have The space between consecutive vertex attributes The color of a vertex Question 5 (2 points) Which of these functions activates a Vertex Buffer Object? Select one. glBindBuffer glGenerateBuffers glGenBuffers glBuffers Data