Answer:
32.36 or 809/25
Step-by-step explanation:
Use a scientific calculator
The x-intercept is the place where y = 0 and the y-intercept is the point where x = 0. Using this information, we can substitute 0 in for x and y to find the intercepts.
x-intercepts (where y = 0):
![2x^3 - 4x^2 = 0](https://tex.z-dn.net/?f=2x%5E3%20-%204x%5E2%20%3D%200)
![x^2(2x - 4) = 0](https://tex.z-dn.net/?f=x%5E2%282x%20-%204%29%20%3D%200)
Here we can apply the Zero Product Property to find
and
separately.
![x^2 = 0](https://tex.z-dn.net/?f=x%5E2%20%3D%200)
![x = 0](https://tex.z-dn.net/?f=x%20%3D%200)
AND
![2x - 4 = 0](https://tex.z-dn.net/?f=2x%20-%204%20%3D%200)
![2x = 4](https://tex.z-dn.net/?f=2x%20%3D%204)
![x = 2](https://tex.z-dn.net/?f=x%20%3D%202)
The x-intercepts are located at (0, 0) and (2, 0).
y-intercept (where x = 0):
![y = 2(0)^3 - 4(0)^2](https://tex.z-dn.net/?f=y%20%3D%202%280%29%5E3%20-%204%280%29%5E2)
![y = 0](https://tex.z-dn.net/?f=y%20%3D%200)
The y-intercept is located at (0, 0).
Answer:
B
Step-by-step explanation:
Notice that the y intercept is 125 and that each time week it goes down by 25 meaning the slope is equal to -25
this means our equation is
-25x+125=y which is the same as b
Answer:
ADC = 60
Step-by-step explanation:
180 - 120 = 60
120 + 120 + 60 + 60 = 360
He set the factored expressions equal to each other. instead of setting them equal to zero
<h3>What are quadratic equations?</h3>
The name Quadratic comes from "quad" meaning square because the variable gets squared (like x2). It is also called an "Equation of Degree 2
The given solution of the quadratic equation in the question is
![f(x) = x^2 + 4x + 3.](https://tex.z-dn.net/?f=f%28x%29%20%3D%20x%5E2%20%2B%204x%20%2B%203.)
His work is shown below.
![0 = x^2 + 4x + 3](https://tex.z-dn.net/?f=0%20%3D%20x%5E2%20%2B%204x%20%2B%203)
![0 = (x + 3)(x + 1)](https://tex.z-dn.net/?f=0%20%3D%20%28x%20%2B%203%29%28x%20%2B%201%29)
Here is where we use the zero product property
x+3 = 0 x+1 =0 We do not set them equal to each other
Hence He set the factored expressions equal to each other. instead of setting them equal to zero
To know more about quadratic equations follow
brainly.com/question/472337