Answer:
0
Step-by-step explanation:
he got all of them wrong
Answer: The answer is 121.92
Step-by-step explanation:
Answer:
![y=-1(x-2)^2+1](https://tex.z-dn.net/?f=y%3D-1%28x-2%29%5E2%2B1)
Step-by-step explanation:
The parabola has the vertex (2, 1) and goes through the point (4, -3).
We will use the vertex form, given by:
![f(x)=a(x-h)^2+k](https://tex.z-dn.net/?f=f%28x%29%3Da%28x-h%29%5E2%2Bk)
Where (h, k) is the vertex and a is the leading coefficient.
Line 1)
So, by substitution:
![\text{Vertex}=(h,k)=(2,1)\Rightarrow y=a(x-2)^2+1](https://tex.z-dn.net/?f=%5Ctext%7BVertex%7D%3D%28h%2Ck%29%3D%282%2C1%29%5CRightarrow%20y%3Da%28x-2%29%5E2%2B1)
Lines 2-4)
Since (4, -3) is a point, y = -3 when x = 4:
![-3=a(4-2)^2+1](https://tex.z-dn.net/?f=-3%3Da%284-2%29%5E2%2B1)
![-3=a(2)^2+1](https://tex.z-dn.net/?f=-3%3Da%282%29%5E2%2B1)
![-4=4a\Rightarrow a = -1](https://tex.z-dn.net/?f=-4%3D4a%5CRightarrow%20a%20%3D%20-1)
Line 5)
By substitution, we acquire our equation*:
![y=-1(x-2)^2+1](https://tex.z-dn.net/?f=y%3D-1%28x-2%29%5E2%2B1)
Answer:
really
Step-by-step explanation: