![y=-3x-3](https://tex.z-dn.net/?f=y%3D-3x-3)
To graph a linear equation:
1. Find the x-intercept
The x-intercedpt is the point when the line cross the x-axis (when y=0)
![\begin{gathered} 0=-3x-3 \\ 3=-3x \\ \frac{3}{-3}=x \\ \\ x=-1 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%200%3D-3x-3%20%5C%5C%203%3D-3x%20%5C%5C%20%5Cfrac%7B3%7D%7B-3%7D%3Dx%20%5C%5C%20%20%5C%5C%20x%3D-1%20%5Cend%7Bgathered%7D)
First point (-1 ,0)
2. Find the y-intercept
The y-intercept is the point when the line cross the y-axis (when x=0)
![\begin{gathered} y=-3(0)-3 \\ y=-3 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20y%3D-3%280%29-3%20%5C%5C%20y%3D-3%20%5Cend%7Bgathered%7D)
Second point (0 , -3)
3. Put in the plane the x and y-intercepts and draw a line that pass through these points:
Besides the x- and y-intercepts you can identify point (-2,3)
22 lol bc it’s the thing and the 5 x 5 equal 25 and minus 3 equals 22
If the length is twice the width, then we could write
and
. For perimeter, there are two length measures and two width measures.
![p = 2l + 2w](https://tex.z-dn.net/?f=p%20%3D%202l%20%2B%202w)
This can be converted into
![2(2w) + 2(w) = p](https://tex.z-dn.net/?f=2%282w%29%20%2B%202%28w%29%20%3D%20p)
Hope I answered your question.
Step-by-step explanation:
Recall that
![\cos{2\theta} = 1 -2\sin^2\theta](https://tex.z-dn.net/?f=%5Ccos%7B2%5Ctheta%7D%20%3D%201%20-2%5Csin%5E2%5Ctheta)
so we can write our original equation as
or
![6\sin^2{\theta} - \sin{\theta} - 2 =0](https://tex.z-dn.net/?f=6%5Csin%5E2%7B%5Ctheta%7D%20-%20%5Csin%7B%5Ctheta%7D%20-%202%20%3D0)
Let
so our equation becomes
![6x^2 - x - 2= 0](https://tex.z-dn.net/?f=6x%5E2%20-%20x%20-%202%3D%200)
which gives us two roots:
and
.
This is equivalent to
and ![\theta = 41.8°](https://tex.z-dn.net/?f=%5Ctheta%20%3D%2041.8%C2%B0)
Answer:
divide 150 by 12 ( because there are 12 inches in one foot) and your answer would be 12.5 feet.
Step-by-step explanation: