On a graph, when a line is going up or down, that is y. When it is going horizontally, that is x. So they can be used as points. For example, if the coordinates were 3, 4, (x, y), then you would first go across 3 on the graph and then go up 4. There you would plot your point. It can also be used in equations. For example, if the equation was..
2x + 3y, and the coordinates were 1, 2, (x, y), then x would be 1 and y would be 2. In order to solve, you would plug in x and y. Hope this helps. If you could give me the brainiest answer that would be greatly appreciated.
Answer:
Option B
Step-by-step explanation:
-1/2x≥4
1) Multiply both sides of the inequality by the reciprocal of -1/2: (-2)
x≤-8
Graph x≤-8 as a line. Remember that lesser negative values go to the left!
ALSO don't forget when you multiply both sides of an inequality by a negative number the inequality sign flips.
Answer:
Centre is ![(7,11)](https://tex.z-dn.net/?f=%287%2C11%29)
Radius is ![6](https://tex.z-dn.net/?f=6)
Step-by-step explanation:
The general equation for a circle is written in the form
, where
is the centre of the circle, and
is the radius.
For your circle,
, we can compare it with the general equation to find the centre and radius.
![-a = -7](https://tex.z-dn.net/?f=-a%20%3D%20-7)
![-b = -11](https://tex.z-dn.net/?f=-b%20%3D%20-11)
![r^2 = 36](https://tex.z-dn.net/?f=r%5E2%20%3D%2036)
Therefore,
,
and
.
Centre at
which is
.
The hypotenuse is sqrt(45) or 6.708
The angle is 63.43 degrees
1
each dot indicates an office
Reading from the vertical scale for 6 computers. Going along this line horizontally there is 1 dot
hence only 1 office has 6 computers.