Ateacher wants to know how much she can predict a student’s reading level from their grade level in given school district. the table shows the grade and reading levels of eight students

Step-by-step explanation:

xyxyx^2y^2

7.17.150.4150.4150.41

6.26.238.4438.4438.44

10.310.3106.09106.09106.09

4.54.520.2520.2520.25

9.79.794.0994.0994.09

8.38.368.8968.8968.89

77494949

6.45.535.240.9630.25

Mean7.43757.32557.7962558.5162557.1775

Cov3.3165625r#DIV/0!  

r0.987954244    

r^20.976053588  

The coefficient of determination r square is 97.60%

Hence 97.6% variation is explained by changes in grade level

Nearest answer is option b  

the distance from any point on the parabola to the focus is the exact same as the distance from that point to the directrix.

if you could provide answer choices that might allow me to answer the question easier if my above answer isn't an option! (:

choice b is correct

step-by-step explanation:

we have been given the following system of inequalities;

we are required to graph the solution to the system of inequalities. using a graphing tool, the graph of the system is as shown in the attachment. the continuous line represents the graph of while the dotted line represents .