Answer:
4. is 41 + 10
5. is 8
6. is 3 * 7 which is 21
7. is 5 * 5 which is 25
Step-by-step explanation:
sorry if i am wrong but it is confusing and took me a while
Answer:
![y = -\frac{7}{4} + 3 , y = -\frac{1}{4}x - 3 : x = 4, y = -4](https://tex.z-dn.net/?f=y%20%3D%20-%5Cfrac%7B7%7D%7B4%7D%20%2B%203%20%2C%20y%20%3D%20-%5Cfrac%7B1%7D%7B4%7Dx%20-%203%20%3A%20x%20%3D%204%2C%20y%20%3D%20-4)
Step-by-step explanation:
![\begin{bmatrix}y=-\frac{7}{4}x+3\\ y=-\frac{1}{4}x-3\end{bmatrix}](https://tex.z-dn.net/?f=%5Cbegin%7Bbmatrix%7Dy%3D-%5Cfrac%7B7%7D%7B4%7Dx%2B3%5C%5C%20y%3D-%5Cfrac%7B1%7D%7B4%7Dx-3%5Cend%7Bbmatrix%7D)
Substitute: ![y=-\frac{1}{4}x-3](https://tex.z-dn.net/?f=y%3D-%5Cfrac%7B1%7D%7B4%7Dx-3)
Isolate x for: ![-\frac{1}{4} x - 3 = -\frac{7}{4} x + 3 : x = 4](https://tex.z-dn.net/?f=-%5Cfrac%7B1%7D%7B4%7D%20x%20-%203%20%3D%20-%5Cfrac%7B7%7D%7B4%7D%20x%20%2B%203%20%3A%20x%20%3D%204)
For ![\:}y=-\frac{1}{4}x-3](https://tex.z-dn.net/?f=%5C%3A%7Dy%3D-%5Cfrac%7B1%7D%7B4%7Dx-3)
Substitute: ![x = 4](https://tex.z-dn.net/?f=x%20%3D%204)
![y=-\frac{1}{4}\cdot \:4-3](https://tex.z-dn.net/?f=y%3D-%5Cfrac%7B1%7D%7B4%7D%5Ccdot%20%5C%3A4-3)
![-\frac{1}{4}\cdot \:4-3 = - 4](https://tex.z-dn.net/?f=-%5Cfrac%7B1%7D%7B4%7D%5Ccdot%20%5C%3A4-3%20%3D%20-%204)
![y = -4](https://tex.z-dn.net/?f=y%20%3D%20-4)
The solutions to the system of equations are:
![x=4,\:y=-4](https://tex.z-dn.net/?f=x%3D4%2C%5C%3Ay%3D-4)
Hope I helped, if so may I get brainliest and a thanks?
Thank you, have a good day! =)
Amplitude : 2/3
Period : 3pi/2