Answer:
4). (x + 2)^2 + (y - 1)^2 = 25.
Step-by-step explanation:
x^2 + y^2 + 4x - 2y - 20 = 0
x^2 + 4x + y^2 - 2y = 20
Completing the square on the x and y terms:
(x + 2)^2 - 4 + (y - 1)^2 - 1 = 20
(x + 2)^2 + (y - 1)^2 = 20 + 4 + 1
(x + 2)^2 + (y - 1)^2 = 25.
Answer:.
Step-by-step explanation: It wont show on my device sir/ma´am/person. Maybe its because of my device ..if not it could possibly be perhaps you somehow put a wrong file? Not to sure on this problem. But i truly hope its just my device and not yours. But other than that; enjoy your day!
(Btw, please dont give me anything. I didnt even answer what you need help on. But wish you luck on it.)
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Answer:</h2>
In mathematics, a parent function is the simplest function of a family of functions preserving the definition or shapes of the entire family. If you are familiar with the basic characteristics of these simple graphs, this will help you to analyze the shapes of more complicated graphs. So the Linear parent function is the identity function:

and these are the characteristics:
- It's a straight line.
- The slope of this line is m = 1
- This line passes through the origin.
Answer:there are many ways you can use it. We used it this way. (8&1)(4&5)(9)(6&3)(7&2)
Step-by-step explanation:
The middle number using 9 like I did. You need all the other powers to add to 9 together. For example 8+1=9, 4+5=9,6+3=9 and 7+2=9