Answer:
Step-by-step explanation:
f(x) = 1/4 x²+bx+10
the derivate is : f'(x) = 1/2 x +b
you have : f'(6)=0
1/2 (6)+b=0
3+b =0
b = -3
so f(x) = 1/4 x²-3x+10.......f(6) =1/4(6)² -3(6)+10 =9-18+10 =1
f(x) = 1/4(x-6)²+1... the vertex form
Answer:
Step-by-step explanation:
See attached file for answer pls
Let, the price of Each ticket = x
Amount of 3 tickets = 3x
Initial money = 36.75
Spend money = 3x
So, Final Amount = 36.75 - 3x
In short, Your Answer would be 36.75 - 3x
Hope this helps!