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: A≈153.94
Step-by-step explanation:
3,000 is the smallest number and 300,000 is the largest number
Let us assume that Timmy and Jared are eating 2 cupcakes combined. As it is not given if they are eating 2 each.
Time taken by Timmy and Jared to eat 2 cupcakes = 3 minutes
Time taken by both of them to eat 18 cupcakes in =
=27
Hence, Timmy and Jared can eat 18 cupcakes in 27 minutes.