[" 4.The line passing through the points "(5,1," a) and "],[(3,b,1)" crosses the "yz" -plane at the point "],[(0,(17)/(2),(-13)/(2))" .Then- "],[[(1)a=2,b=8," (2) "a=4,b=6],[3x/a=6,b=4,(4)a=8,b=2]]

The line passing through the points (5,1,4) and (3,b,1) crosses the yz-plane at the point (0,(17)/(2), - (13)/(2)). Then:

The line passing through the points (5,1,a) and (3,b,1) cross the yz -plane at the point (0,17/2,-13/2) .Then

If the line passing through the point (5,1,a) and (3,b,1) crosses the yz-plane, at the point (0,17/2, -13/2) then

If the line passing through the points (3,y,1) and (5,1,z) crosses the yz- plane at the point (0,(17)/(2),(-13)/(2)) then y + z

If the line passing through the points (5,1,p) and (3,q,1) crosses the YZ plane at the point (0,17/2, -13/2) , then

The line passing through the points (5, 1, a) and (3, b, 1) crosses the yzplane at the point (0,(17)/2,(-13)/2) .Then (1) a""=""2,""b""=""8 (2) a""=""4,""b""=""6 (3) a""=""6,""b""=""4 (4) a""=""8,""b""=""2