Answer:
{ 1,2,3,4}
Step-by-step explanation:
The domain of a function is all the inputs
The inputs are { 1,2,3,4}
The domain is { 1,2,3,4}
To solve this we are going to take advantage of the fact the the sum of the interior angles of a quadrilateral is always 360°. So, we can add up all our angles and set them equal to 360°:

Now, we just need to solve for

:




We can conclude that the value of

in our quadrilateral is

°, or we can conclude that

is approximately 25.7° (in decimal form).
25-4x=16-4x
25-4x+4x=16-4x+4x
25=16
No solution
Contradiction
Answer:
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