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In 3-Dimensional Space 3D Test: Next Tuesday or Wednesday Lines • Any 2 points can make a line • Intersection of 2 lines is a point or the same line • A plane and a line not in the plane intersect in 1 point Planes • Goes on forever in 2 dimensions • Contains many lines/points • Any 3 noncollinear points (not on the same line) make a plane • Intersection of 2 planes is a line or the same plane. • Coplanar means on the same plane. Planes • 3 planes may intersect at a point, line, 2 lines, 3 lines, be the same plane, or not intersect Solution is a point. No solution. Solution is a line. No solution. No solution. This is called isometric graph paper. I have this paper on my teacher page. It makes graphing 3-d coordinates much easier….go online and print some off Z We will be graphing tomorrow! X Y Homework • 3D Intro. Worksheet