Step-by-step explanation:
Brackets is the bigger version of parentheses, you first solve the questions inside the parentheses, then move onto brackets.
For example, this question:

![5x-y[7-4(z-y)]](https://tex.z-dn.net/?f=5x-y%5B7-4%28z-y%29%5D)
<u>plug in x, y, and z.</u>
![5(-1)-(-2)[7-4(3-(-2))]](https://tex.z-dn.net/?f=5%28-1%29-%28-2%29%5B7-4%283-%28-2%29%29%5D)
![5(-1)-(-2)[7-4(5)]](https://tex.z-dn.net/?f=5%28-1%29-%28-2%29%5B7-4%285%29%5D)
![5(-1)-(-2)[7-20]](https://tex.z-dn.net/?f=5%28-1%29-%28-2%29%5B7-20%5D)
![5(-1)-(-2)[-13]](https://tex.z-dn.net/?f=5%28-1%29-%28-2%29%5B-13%5D)
![-5-(-2)[-13]](https://tex.z-dn.net/?f=-5-%28-2%29%5B-13%5D)


I hope you understand better now.
Step-by-step explanation:
sorry need the graph but when you show graph I will definitely give you the right answer
Answer:
1. No
2. No
3. No
4. No
Step-by-step explanation:
y=2 so you multiply your x by 2 and you should come out with your y
your y should be 1 * 2 = 2 but is 9 ---->for (1, 9)
your y should be -6 * 2 = -12 but is 2 ---->for (-6, 2)
your y should be 2 * 2 = 4 but is -8 ----->for (2, -8)
your y should be 0 * 2 = 0 but is -4 ----> ( 0, -4)
side note -I'm sorry if you get it wrong,hopefully it's right though.
Answer:
(x-7)²+(y+5)²=25
Step-by-step explanation:
The standard form of a circle is (x-h)²+(y-k)²=r²
(h,k) is the center
r is the radius
h=7
k=-5
r=5
(x-7)²+(y--5)²=5²
(x-7)²+(y+5)²=25