The graph shows the relationship between hours spent on video games and hours spent on homework last week for students in Joyce'
s class. Joyce created the following scatterplot and regression line to show this relationship.
The fitted line has a y-intercept of 23.
What is the best interpretation of this y-intercept?
A: the model indicates that students who spent 23 hours on video games will average approximately 0 hours spent on homework
B: joyce spent approximately 23 hours on homework
C: joyce spent approximately 23 hours on video games
D: the model indicates that students who spent 0 hours on video games will average 23 hours spent on homework 
The fitted line has a y-intercept of 23.
What is the best interpretation of this y-intercept?
A: the model indicates that students who spent 23 hours on video games will average approximately 0 hours spent on homework
B: joyce spent approximately 23 hours on homework
C: joyce spent approximately 23 hours on video games
D: the model indicates that students who spent 0 hours on video games will average 23 hours spent on homework
2 answers:
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Answer: In degrees , The measure of
In radians , the measure of .
Step-by-step explanation:
We know that the formula for length of arc is given by :-
, where = Central angle subtended by arc.
r= radius of the circle.
As per given , we have
Radius of circle : r=7 m
Length of arc : l= 8 m
Substitute these values in the above formula , we get
Hence, the measure of .
To convert it into degrees we multiply it with
The measure of
Hence, the measure of