Something funny is that the x value of the vertex lies directl in the middle of the x intercepts
so
we see the x intercepts or 0's at x=8 and 2
the average is x=5
so find f(5) to find the y value of the vertex
f(5)=(5-8)(5-2)
f(5)=(-3)(3)
f(5)=-9
vertex is at (5,-9)
the actual way the teacher wants is to expand then compltete the square to get into the form f(x)=a(x-h)^2+k where the vertex is (h,k)
but whatever
verrtex is at (5,-9)
Answer: bro make me a brainlyist
Step-by-step explanation:
Answer:
64°
Step-by-step explanation:
33k - 9 = 90
33k = 99
k = 3
Arc CD: 20k + 4 = 20 x 3 + 4 = 64°
Answer: no. it doesn’t match for the first one but it does for the second.
Step-by-step explanation: