D and a because they both dont change the answer and b
Given the function f(x);

Evaluating the function f(x+h);

So;

Evaluating the second function;

simplifying further;

Therefore, we have;
Answer:
12.63
Step-by-step explanation:
Hi!
Given:

Multiply both sides by 

<em>Notice the sign was flipped. This is because when you multiply or divide by a negative number, you must always flip the sign!</em>
<u>Now, for the graph:</u>
-------------------------------------------------------------------------------------------------------------
For < or > signs, it should be an open circle. For
or
signs, it should be closed.
Since
is less than 6, it should go to the left. Since it's a < symbol, it should be open. Therefore your answer is B.
(looks like you were right!!)