The point will not be on the given line, and can be above or below it. Think of this point as one vertex of a rhombus. Since opposite sides of a rhombus are parallel, by drawing a rhombus we can construct a parallel line. If the line and point are not already labeled, you might want to label them to easily keep track of the steps. For example, you might have line m{\displaystyle m} and point A{\displaystyle A}. To do this, set the compass tip on the given point and draw an arc that intersects the given line at some point. Do not change the width of the compass. It does not matter how wide you set the compass, as long as it can intersect the given line. Make sure the arc reaches above the given point and intersects the given line. For example, you should set the compass tip at point A{\displaystyle A} and create an arc that intersects line m{\displaystyle m} at point B{\displaystyle B}. Using the same compass width, set the compass tip at the second vertex, and draw an arc that intersects the given line at a new point. Do not change the width of the compass. The arc only has to be long enough to show where it intersects the given line. For example, you should set the compass tip at point B{\displaystyle B} and create an arc that intersects line m{\displaystyle m} at point C{\displaystyle C}. Using the same compass width, set the compass at the third vertex, and draw an arc that intersects the first arc you drew (through the second vertex). The arc only has to be long enough to show where it intersects the first arc. For example, you should set the compass tip at point C{\displaystyle C} and create an arc that intersects the first arc at point D{\displaystyle D}. This line will pass through the given point and be parallel to the given line, as the two lines form two opposite sides of a rhombus. For example, a line drawn through point A{\displaystyle A} and point D{\displaystyle D} will be parallel to line m{\displaystyle m}.

Summary: Locate the given line and the given point. Draw the second vertex of the rhombus. Draw the third vertex of the rhombus. Draw the fourth vertex of the rhombus. Draw a line through the first and fourth vertices of the rhombus.

Dates are ripe when they start turning brown. They'll also be slightly soft to the touch. Once you start seeing these changes, it's time to pick the ripe fruit. Very immature dates will be green. They'll turn pinkish or orange as they are starting to get riper. Dates will ripen off the tree, so if your dates are being eaten by birds, you may want to harvest them early. You can also put netted bags over the fruit to keep the birds from eating them. As dates ripen, they also start to wrinkle. They almost look like a large raisin. When checking for ripe dates, look for wrinkles, as well. Dates ripen at different times. To maximize how many dates you get off the tree, you need to check it at least once a week for ripe dates. Watch for the pink-orange fruit, as they will ripen in about a week.
Summary: Look for soft, brown fruit. Check for wrinkles. Look for ripe dates throughout the season.