Answer:
motor world
Step-by-step explanation:
it's a world full of cars
To find the inverse function simply replace "x" by "y", replace "y" by "x", and solve for y
f(x)=4x
y=4x
x=4y
y=x/4 or h(x)=(1/4)x
Using the vertex of the quadratic function, it is found that:
a) The maximum number of customers in the store is at 12 P.M.
b) 75 customers are in the store at this time.
The number of customers in x hours after 7 AM is given by:
![y = -x^2 + 10x + 50](https://tex.z-dn.net/?f=y%20%3D%20-x%5E2%20%2B%2010x%20%2B%2050)
Which is a quadratic equation with coefficients ![a = -1, b = 10, c = 50](https://tex.z-dn.net/?f=a%20%3D%20-1%2C%20b%20%3D%2010%2C%20c%20%3D%2050)
Item a:
The maximum value, considering that a < 0, happens at:
![x_v = -\frac{b}{2a}](https://tex.z-dn.net/?f=x_v%20%3D%20-%5Cfrac%7Bb%7D%7B2a%7D)
Hence:
![x_v = -\frac{10}{2(-1)} = 5](https://tex.z-dn.net/?f=x_v%20%3D%20-%5Cfrac%7B10%7D%7B2%28-1%29%7D%20%3D%205)
5 hours after 7 A.M, hence, the maximum number of customers in the store is at 12 P.M.
Item b:
The value is y(5), hence:
![y(5) = -(5)^2 + 10(5) + 50 = 75](https://tex.z-dn.net/?f=y%285%29%20%3D%20-%285%29%5E2%20%2B%2010%285%29%20%2B%2050%20%3D%2075)
75 customers are in the store at this time.
A similar problem is given at brainly.com/question/24713268
<span> Replace f(x) with y
Swap x and y
Multiply both sides by y-2
Distribute</span>
Answer:
option 3
Step-by-step explanation: