The equation used in this problem is <span>f(x)=x^4−x^3−2x−4
The factored version is F(x)=(x-2)(x+1)((x^2)+2)
-I hope this is the answer you are looking for, feel free to post your questions here on brainly in the future.</span>
68 - 14 = 54, 54/6 = 9 hours
Remember that the domain is all possible x values.
Here, the highest x value is 2 and the lowest is -4, which makes A and D incorrect.
x can also be anything between 2 and -4, so B is also incorrect.
That leaves C our answer.
<h3>
Answer: B) 4</h3>
This is because the z coordinate is -4. So we move down 4 units on the z axis. The z axis is basically a vertical pole planted in the ground, and the xy plane is the flat floor.
It's a bit tricky to visualize so try to imagine that you're in this 3D space personally.
Or you could imagine that something like z = -4 means you are in basement level 4 of a building (say a parking garage) and something like z = 6 means you're on the 6th floor above the ground.
