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The arrows at the ends of a number line indicate that the line extends forever in

both directions (i.e. towards positive infinity and negative infinity)...since there is

no largest or smallest real number.

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15y ago

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Q: Why do you put an arrow at the end of a number line?
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Continue Learning about Geometry

Can you make a straight line into curved line?

yes you can so if you put two lines meeting at a 90' angle then put as many marks on the lines but make sure you put the same amount of marks on each of the line then number the mark on one line then the number number you started with goes at the end of the line you havent numbered the join the numbers up


How do you graph -2x5 on a number line?

If your solution comes from an equation, then you simply plot your answer on the number line. If the solution comes from an inequality, you either circle the solution, or color it in, depending on whether your inequality was < or < =. If it is <, then circle your point on the number line, and shade the line for numbers less than your solution. If it is >, circle your point on the number line, and shade the line for the numbers greater than your solution. If it is <=, repeat above, but instead of circling, shade your solution's point as well.


Can you put the digits 1 to 11 in the circles so that every line has the same total?

Simple enough... the key is to put 6 in the middle. Then you have to balance each line with one big number and one small. So for example...put 1 on the end of a line, 6 in the middle and 11 on the other side. Adds up to 18. Then move around .... 2 and 10 with the 6 in the middle. 18 again. 3 and 9 (plus the 6) makes the same answer :) make sense?


Can you draw an acute scalene triangle?

Yes!!!! You can. If you know the side lengths, say 7,9 & 11. You need a ruler and a pair of compasses. Draw you base line of '11' . Open the compasses to '9' using the ruler. Put one point of the compass on the end of the base line and draw an arc. Again open the compasses to '7' . Put one point of the compass on the other end of the base line and draw an arc. Where the two arcs intersect is the apex of the triangle. So taking your ruler drawe a line from one end of the base line to the apex. ,and then again draw a line from the other end of the base line to the apex. You now have a 7,9, & 11. triangle(trigon). Proving you know the side lengths, this method is hood for any shaped triangle.


How do you make a 56 degree angle with a compass?

Well, honey, you start by drawing a straight line with your compass. Then you put the pointy end of the compass on one end of the line and swing that bad boy until it hits the line at the desired angle. Voilà, you've got yourself a 56 degree angle. Keep on slaying those geometry problems, darling.