Suppose a teacher finds that the
scores her students got on a quiz
varied inversely with the number of
absences they had.
if a student with 2 absences got a
score of 12, what would be the score
for a student who had 3 absences?

If a student with 2 absences got a score of 12, we can affirm that the student got 6 points for every absence she or he had.

Therefore, if a student had 3 absences and the results varied inversely with the number of absences they had, it means that her or his score would be: 3 * 6 = 18 points.

The correct answer is 18 points.

Step-by-step explanation:

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

a. the residual plot for model 1 has a random pattern and is a good fit for the data.