Two parallel lines.
The origin, O is the point where the value on the number line is zero. Locate the a point 3 units to the left of the Origin, O and another point that is 5 units to the right of the origin. Join the two points with a straight line.
There is an infinite number of lines.
3 "tens of units" plus 5 "units".
4
-3
A number line can help you visualize this. See http://en.wikipedia.org/wiki/Number_line for an example, and a description. On a number line, adding 3 means to go 3 units to the right; if you start at -9 and go 3 units to the right, you end at -6, 'tis as simple as that. (Subtracing a number means going a certain number of units to the left.)
11
Extend all the lines of a right-angled triangle with sides of 3, 4 and 5 units. The extension of the lines forming the right angle will produce 3 other right angles. The extension of the lines forming the other two angles will produce 6 other angles. This gives a total of 12 angles, 4 of which are acute, 4 right and 4 obtuse.
Can someone please help me???
if a figure is shifted 3 units to the right, you add to the coordinate
Two parallel lines.
The origin, O is the point where the value on the number line is zero. Locate the a point 3 units to the left of the Origin, O and another point that is 5 units to the right of the origin. Join the two points with a straight line.
In cartesian coordinates (x, y) = (3, -4)
There is an infinite number of lines.
We add only when numbers have the same sign. Since the numbers have different sings which means opposite signs, then we have to operate the opposite of addition which is subtraction. Why do we add numbers that have the same sign? Look at the real number line. As we decided to assign numbers with a positive sign if they go far from zero to the right, and with a negative sign if the go far from zero to the left, then we say there are to opposite directions of moving; we move to the right of any number, if the next number is a positive number, and we move to the left of any number, if the next number is a negative number. Let's try to plot the result of, say 5 + 3. The only possibility to do that is to go far from zero only to the right: first, 5 units, then 3 units more, so the total distance is 8 units to the right of zero. And we say 5 + 3 = 8. What about of -5 - 3? The only possibility to do that is to go far from zero only to the left: first, 5 units, then 3 units more, so the total distance is 8 units to the left of zero. And we say -5 - 3 = -8. What about of -5 + 3? There are two possibilities to do that. First, by moving to the left of zero 5 units, then from there, by moving back to the right 3 units. So the total distance from zero is 2 units to the left. And we say -5 + 3 = -2. Since the previous distance from zero became smaller, it means that we've subtracted those numbers (meaning their distances from zero), and we ploted their differnce (since the distance of -5 dominaned and it was on the left, then the remaining distance must be on the left).
3 "tens of units" plus 5 "units".