Up, right, down, left, up
C 75 that’s what it is on apex
Answer:
(a) See below.
(b) x = 0 or x = 1
(c) x = 0 removable, x = 1 non-removable
Step-by-step explanation:
Given rational function:

<u>Part (a)</u>
Substitute x = 2 into the given rational function:

Therefore, as the function is defined at x = 2, the function is continuous at x = 2.
<u>Part (b)</u>
Given interval: [-2, 2]
Logs of negative numbers or zero are undefined. As the numerator is the natural log of an <u>absolute value</u>, the numerator is undefined when:
|x - 1| = 0 ⇒ x = 1.
A rational function is undefined when the denominator is equal to zero, so the function f(x) is undefined when x = 0.
So the function is discontinuous at x = 0 or x = 1 on the interval [-2, 2].
<u>Part (c)</u>
x = 1 is a <u>vertical asymptote</u>. As the function exists on both sides of this vertical asymptote, it is an <u>infinite discontinuity</u>. Since the function doesn't approach a particular finite value, the limit does not exist. Therefore, x = 1 is a non-removable discontinuity.
A <u>hole</u> exists on the graph of a rational function at any input value that causes both the numerator and denominator of the function to be equal.

Therefore, there is a hole at x = 0.
The removable discontinuity of a function occurs at a point where the graph of a function has a hole in it. Therefore, x = 0 is a removable discontinuity.
Answer:

Step-by-step explanation:
Given


Perpendicular to 
Required
Determine the plane equation
The general equation of a plane is:

For 


First, we need to determine parallel vector 



is parallel to the required plane
From the question, the required plane is perpendicular to 
Next, we determine vector 

This implies that the required plane is parallel to 
Hence:
and
are parallel.
So, we can calculate the cross product 



![V_1 * V_2 =\left[\begin{array}{ccc}i&j&k\\0&2&8\\8&7&4\end{array}\right]](https://tex.z-dn.net/?f=V_1%20%2A%20V_2%20%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Di%26j%26k%5C%5C0%262%268%5C%5C8%267%264%5Cend%7Barray%7D%5Cright%5D)
The product is always of the form + - +
So:
![+k\left[\begin{array}{cc}0&2\\8&7\end{array}\right]](https://tex.z-dn.net/?f=%2Bk%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D0%262%5C%5C8%267%5Cend%7Barray%7D%5Cright%5D)
Calculate the product




So, the resulting vector, n is:

Recall that:

By comparison:

Substitute these values in 

Recall that:
So, we have:


Collect Like Terms


Divide through by -16

<em>Hence, the equation of the plane is</em>
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