Answer:
The answer is C
Step-by-step explanation:
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First row is 3 cookies for every $1, proportional, and Table to the right
Second row is 3 more cookies than donuts, non-proportional, and the Table on the left
Since the square root of a negative number is not a real number, then a negative radical will result in no real solution.
A constant function is characterized by having the same value for f(x) in all it's domain. This means every value of x will have the same value in the axis y. You can see that in the graphic as a horizontal line.
The answer is: (2,6)