I need help with these problems please, and please make it legible.

Give a geometric description of the set of points in space whose coordinates satisfy the given pair of equations. x=9, y=8 Choose the correct description below. 0 A. The line through the point (9,8,0) parallel to the xaxis O B. The line through the point (9,8,0) parallel to the z-axis O C. The point (8,9,0) 0 D. The point (9,8,0) Describe the set of points in space whose coordinates satisfy the given combination of equations and inequalities. a.x50, y=0, st b.x20, y20, z=0 a. Choose the correct description below for the combination of equations and inequalities given in part (a). O A. The half space consisting of the points on and below the xz-plane B. The line through the origin parallel to the y-axis O c. The plane perpendicular to the y-axis at y= 0 O D. The third quadrant of the xz-plane b. Choose the correct description below for the combination of equations and inequalities given in part (b). O A. The half space consisting of the points on and below the xyplane (9 B. The rst quadrant of the xy-plane O c. The line through the origin parallel to the z-axis O D. The plane perpendicular to the z-axis at z = 0