Question

The scatter plot below shows the relationship between the weekly hours spent on social media and the weekly hours spent reading, by the students of a middle school:
A scatter plot is shown titled free time activities. The x-axis is labeled hours spent reading. The y-axis is labeled hours spent on social media. Data points are located at 0 and 8, 2 and 8, 4 and 5, 6 and 3, 6 and 5, 6 and 7, 9 and 4, 10 and 2. A line connects the points 0 comma 8 and 10 comma 3.

What is the y-intercept of the line of best fit, and what does it represent?

6 hours; the number of hours students read when they do not spend time on social media
6 hours; the number of hours students spend time on social media when they do not read
8 hours; the number of hours students read when they do not spend time on social media
8 hours; the number of hours students spend time on social media when they do not read

Answer 1

Answer:

C

Step-by-step explanation:

In general, the number of hours of reading does not affect the number of hours used for chores.

Answer 2

Y-intercept is the point where the line crosses the y-axis. At this point the the x-component is zero. So the y-intercept is of the form (0,y)

We can see the y-intercept from the given data points. The y-intercept is (0,8) or y=8.

x-axis represents the time spent on reading and y axis represents the time spent on Social Media. The y-intercept indicates that when the time spent on reading is 0, the time spent on Social media is 8 hours.

So, option D gives us the correct answer.