Boardgame+snacks=total weight
total weight<25
boardgame=4
snacks=weight per each time number=14 times n or 14n
4+14n<25
minus 4 both sides
14n<21
divide both sides by 14
n<1.5
we can't send 0.5 package so we round down
n<1
send less than 1 snack pack
A
ANSWER
The solution is where the two graphs intersect, which is
![(-3,1).](https://tex.z-dn.net/?f=%28-3%2C1%29.)
EXPLANATION
The given system of equations are
![y = \frac{1}{3} x + 2](https://tex.z-dn.net/?f=y%20%3D%20%5Cfrac%7B1%7D%7B3%7D%20x%20%2B%202)
and
![y = - x - 2](https://tex.z-dn.net/?f=y%20%3D%20-%20x%20-%202)
We need to graph the two equations.
Let us graph
![y = \frac{1}{3} x + 2](https://tex.z-dn.net/?f=y%20%3D%20%5Cfrac%7B1%7D%7B3%7D%20x%20%2B%202)
first.
We need at least two points.
You can choose any appropriate value for x and solve for y. Choosing zero makes our working easier. So let us plot the intercepts.
When
![x = 0](https://tex.z-dn.net/?f=x%20%3D%200)
![\Rightarrow \: y = \frac{1}{3} (0) + 2](https://tex.z-dn.net/?f=%5CRightarrow%20%5C%3A%20y%20%3D%20%5Cfrac%7B1%7D%7B3%7D%20%280%29%20%2B%202)
![\Rightarrow y = 0 + 2](https://tex.z-dn.net/?f=%20%5CRightarrow%20y%20%3D%200%20%2B%202)
![\Rightarrow y = 2](https://tex.z-dn.net/?f=%20%5CRightarrow%20y%20%3D%202)
So this gives us the ordered pair,
![(0,2)](https://tex.z-dn.net/?f=%280%2C2%29)
When
![y = 0](https://tex.z-dn.net/?f=y%20%3D%200)
we get,
![0= \frac{1}{3} x + 2](https://tex.z-dn.net/?f=0%3D%20%5Cfrac%7B1%7D%7B3%7D%20x%20%2B%202)
![\Rightarrow \: - 2 = \frac{1}{3} x](https://tex.z-dn.net/?f=%5CRightarrow%20%5C%3A%20-%202%20%3D%20%5Cfrac%7B1%7D%7B3%7D%20x)
![\Rightarrow \: - 2 \times 3= x](https://tex.z-dn.net/?f=%5CRightarrow%20%5C%3A%20-%202%20%5Ctimes%203%3D%20x)
![\Rightarrow \: -6= x](https://tex.z-dn.net/?f=%5CRightarrow%20%5C%3A%20-6%3D%20x)
This also gives the ordered pair
![(-6,0).](https://tex.z-dn.net/?f=%28-6%2C0%29.)
We plot these two points and draw a straight line through them to obtain the blue graph in the attachment.
For the second line
![y = - x - 2](https://tex.z-dn.net/?f=%20y%20%3D%20-%20x%20-%202)
We again find the intercepts and plot them.
When
![x = 0](https://tex.z-dn.net/?f=x%20%3D%200)
![y = - 0 - 2](https://tex.z-dn.net/?f=y%20%3D%20-%200%20-%202)
![\Rightarrow \: y = - 2](https://tex.z-dn.net/?f=%5CRightarrow%20%5C%3A%20y%20%3D%20-%202)
This gives the ordered pair
![(0,-2)](https://tex.z-dn.net/?f=%280%2C-2%29)
Also, when
![y = 0](https://tex.z-dn.net/?f=y%20%3D%200)
then we have,
![0 = - x - 2](https://tex.z-dn.net/?f=0%20%3D%20-%20x%20-%202)
![2 = - x](https://tex.z-dn.net/?f=%202%20%3D%20-%20x)
![x = - 2](https://tex.z-dn.net/?f=x%20%3D%20-%202)
Then we again have the ordered pair,
![(-2,0)](https://tex.z-dn.net/?f=%28-2%2C0%29)
We plot these two points on the same graph sheet to obtain the red graph above.
The intersection of the two lines is
![(-3,1)](https://tex.z-dn.net/?f=%28-3%2C1%29)
You will get good grades so don't worry much.
The slope of the red line that is perpendicular to the green line is: -5/2.
<h3>What are the Slope Values of Perpendicular Lines?</h3>
When one line lies perpendicular to another line, the slope of one must be the negative reciprocal of the other line.
<h3>What is the Negative Reciprocal of a Number?</h3>
If given a number, i.e. a/b, the negative reciprocal of a/b would the opposite value of the reciprocal of a/b.
Reciprocal of a/b is b/a. Negative reciprocal of a/b would therefore be: -b/a.
Given that the slope of the green line is: 2/5. And it is perpendicular to the red line. The slope of the red line would be the negative reciprocal of 2/5.
Negative reciprocal of 2/5 is -5/2.
Therefore, the slope of the red line is: -5/2.
Learn more about slope of perpendicular lines on:
brainly.com/question/1362601
#SPJ1
A rational expression is undefined when the denominator is zero.
![V=\dfrac{5-x}{x(x-2)}](https://tex.z-dn.net/?f=V%3D%5Cdfrac%7B5-x%7D%7Bx%28x-2%29%7D)
is undefined when x=0 or x=2.