Ok why’s the picture upside down??.?
<span> D) Train A by a factor of 1.1
</span>Train A: <span>17/35</span><span> = 34.6</span>
<span>Train B: </span>Rate<span> is the </span>slope<span> of the </span>equation, 31.35
Thus,<span>34.6/31.35</span><span> = 1.1036</span>
Answer:
a = 8
b = -8
Step-by-step explanation:
You have the following function:
A function is differentiable at a point c, if the derivative of the function in such a point exists. That is, f'(c) exists.
In this case, you need that the function is differentiable for t=2, then, you have:
If the derivative exists for t=2, it is necessary that the previous derivatives are equal:
Furthermore it is necessary that for t=2, both parts of the function are equal:
Then, a = 8, b = -8
We have these system of inequalities:
In this way, we have two straight lines that can be solved as follows:
This two lines has been plotted in the Figure below and the region of the inequality is indicated in gray color. Therefore, each point in this region satisfies the system of inequalities. To illustrate this, let's take a point within the gray region, say (0, 0):