Answer: yes is it a function
Step-by-step explanation:
A graph is a function when there is only one y value for each x value. You can also use the vertical line test. This example is a “quadratic function”.
Are you asking if this is greater than, less than, or equal to?
The range is (10,11.5,12.5,13.75)
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2 because there are 4 numbers of edges and 4 vertices