Answer:
its c
Step-by-step explanation:
1 is C and 2 is D please say thanks
Answer:
B
Step-by-step explanation:
the answer is B
Answer:
A
![F(x)=-\frac{1}{1500}(x+20)(x+5)(x-15)](https://tex.z-dn.net/?f=F%28x%29%3D-%5Cfrac%7B1%7D%7B1500%7D%28x%2B20%29%28x%2B5%29%28x-15%29)
B
![=> F(x)=-\frac{x^3}{1500}-\frac{x^2}{150}+\frac{11x}{60}+1](https://tex.z-dn.net/?f=%3D%3E%20F%28x%29%3D-%5Cfrac%7Bx%5E3%7D%7B1500%7D-%5Cfrac%7Bx%5E2%7D%7B150%7D%2B%5Cfrac%7B11x%7D%7B60%7D%2B1)
Step-by-step explanation:
Function and its graphs
Part A
The graph shown in the image corresponds to a cubic function because of its classical infinite branches, three real roots and two extrema values
Part B
Knowing the value of the three roots x=-20, x=-5, and x=15 we can express the cubic function in factored form:
![F(x)=C(x+20)(x+5)(x-15)](https://tex.z-dn.net/?f=F%28x%29%3DC%28x%2B20%29%28x%2B5%29%28x-15%29)
The value of C will be determined by using any particular point from the graph. Let's use (0,1)
![1=C(0+20)(0+5)(0-15)](https://tex.z-dn.net/?f=1%3DC%280%2B20%29%280%2B5%29%280-15%29)
![C=-\frac{1}{1500}](https://tex.z-dn.net/?f=C%3D-%5Cfrac%7B1%7D%7B1500%7D)
Replacing, we find the factored form of the function
![F(x)=-\frac{1}{1500}(x+20)(x+5)(x-15)](https://tex.z-dn.net/?f=F%28x%29%3D-%5Cfrac%7B1%7D%7B1500%7D%28x%2B20%29%28x%2B5%29%28x-15%29)
The standard form demands to expand all the products and simplify
![F(x)=-\frac{1}{1500}(x^3+10x^2-275x-1500)](https://tex.z-dn.net/?f=F%28x%29%3D-%5Cfrac%7B1%7D%7B1500%7D%28x%5E3%2B10x%5E2-275x-1500%29)
![=> F(x)=-\frac{x^3}{1500}-\frac{x^2}{150}+\frac{11x}{60}+1](https://tex.z-dn.net/?f=%3D%3E%20F%28x%29%3D-%5Cfrac%7Bx%5E3%7D%7B1500%7D-%5Cfrac%7Bx%5E2%7D%7B150%7D%2B%5Cfrac%7B11x%7D%7B60%7D%2B1)
Answer:
12 number for theanswer of that question answer