Answer:
Yes that is a polynomial because it involves a sum of powers in one or more variables multiplied by coefficients
The specific type of this polynomial is a called a quadrinomial because it has 4 terms
Answer:
AB is 70 degree and the DC is 60 degree
Answer: Option C

Step-by-step explanation:
Whenever we have a main function f(x) and we want to transform the graph of f(x) by moving it vertically then we apply the transformation:

If
then the graph of k(x) will be the graph of f(x) displaced vertically b units down.
If
then the graph of k(x) will be the graph of f(x) displaced vertically b units upwards.
In this case we have

We know that this function has its vertex in point (0,0).
Then, to move its vertex 7 units down we apply the transformation:
.
Then the function k(x) that will have its vertex 7 units below f(x) is

<span>x/4+3=24
x/4 + 3 -3 = 24 -3
x/4 = 21
x/4 * 4 = 21 * 4
x = 84</span>
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