after taking the first exam, 15 of the students dropped the class. the value 15 describes .
a characteristic of a population
a characteristic of a continuous data set
a characteristic of an ordinal data set
a characteristic of a sample

After taking the first exam, 15 of the students dropped the class. The value 15 describes a characteristic of a population - first choice.

characteristic of a population

Step-by-step explanation:

took the test

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

answer: b.

step-by-step explanation:

the y coordinate for point b is 0, and answer b is the only one with that y coordinate.