Graph the relation. Is the relation a function? Why or why not? {(-1, 9), (0, -1), (-1, 4), (4,9)}
No; a range value has two domain values.
No; a domain value has two range values.
Yes; there is only one range value for each domain value.
Yes; there is only one domain value for each range value.

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none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square