Please write the question number and the letter of the answer

1) Which one of the following is used to increase the size of a pixel in OpenGL: a. gIPointSize b. gl_PointSize c. gIPixelSize d. glPointincreaseSize 2) What type of lines are allowed to use in OpenGL (choose all that apply): a. GL_LINES b. GL_LINE_FAN c. GL_LINE_LOOP d. All of the above 3) Which one of the following is not a valid primitive to draw triangle using OpenGL: a. GL_TRIANGLES b. GL_TRIANGLE_LOOP c. GL_TRIANGLE_STRIP d. GL_TRIANGLE_FAN 4) Which one of the following in not true? a. Triangles are drawn filled b. Triangles are not drawn by default filled by default and you can fill them by using glPolygonMode c. Triangles are drawn filled d. None of the above by default and you can change it by using glPolygonMode 5) For a polygon to be convex, all of its interior angles must be greater than 180 degrees: a. TRUE b. FALSE 6) Which one of the following is not true regarding the advantage of DDA line drawing algorithm: a. It is suitable for hardware Implementation. b. It is not suitable for c. It is a faster method than hardware implementation using a line equation. d. It is simple and easier to calculate. 7) Which one of the following is true regarding Bresenham's line algorithm: a. It is not suitable to implement b. It is suitable to uxing hardware b.ItisnotfisterascomparedtoDDAc.Alloftheabove 8) In the equation of the line: y=5x2, the slope and y-intercept of the line are: a. slope =x,y-intercept =y b. slope =5,y-intercept =2 c. slope =5x,y-intercept =2 d. slope =2,y-intercept =5x