Which is better, perpendicular or parallel bat rolling, will depend on the type of bat you are rolling. If you are rolling an aluminum bat parallel bat rolling is better.
A perpendicular bisector is a line that cuts through another line at 90 degrees
It's a line of infinite extent, and should be drawn in blue or black on the graph, solid, and with the smallest possible thickness. The line is vertical, perpendicular to the x-axis, passing through the point [ x = -2 ], parallel to the y-axis, and traversing the Second and Third Quadrants.
By definition, a parallelogram two separate pairs has parallel sides. The only type of parallelogram that has perpendicular sides is a rectangle. All others have non-perpendicular sides.
a vertical line
The different type of line designs are zig zag, parallel, dotted, dashed, perpendicular, curved, straight and wavy. The most used line designs are zig zag, dotted and straight.
A vertical line. Remember that one test to see if a relation is a function is the vertical line test. A vertical line would fail that of course.
perpendicular lines are a special type of intersecting line that happen to intersect at 90 degree angles
Lines of latitude.