For immune function, the following doses have been taken by mouth: 40 IU of vitamin D3 daily for 20 years to 100,000 IU of vitamin D3 bimonthly for 12 months, or 10,000 IU daily. For inflammatory bowel disease, 0.5 micrograms of alfacalcidol has been taken by mouth daily.
Intersecting lines. Two or more lines that meet at a point are called intersecting lines. That point would be on each of these lines. In Figure 1, lines l and m intersect at Q. Figure 1 Intersecting lines. Perpendicular lines. Two lines that intersect and form right angles are called perpendicular lines.
Sections: Slope-intercept form, Point-slope form, Parallel and perpendicular lines. There is one other consideration for straight-line equations: finding parallel and perpendicular lines. Here is the usual format for the question: 1  Given the line 2x â 3y = 9 and the point (4, â1), find lines through the point that are:his is the parallel line that they asked for. For the perpendicular line, I have to find the perpendicular slope. The reference slope is m = 2/3, and, for the perpendicular slope, I'll flip this slope and change the sign. Then the perpendicular slope is m = â 3/2.