Your teacher surveyed the class to determine the number of hours that each student spent on social media. Your teacher created a table and scatterplot graph that displayed the number of hours, x, and the average final grade percentage, y, based on the hours. Using the equation of the trend line of the data, y=–7.2x+98.9, predict the average final grade percentage, to the nearest whole number, if a student spent 10 hours on social media.(1 point) ResponsesThe average final grade is 27% if a student spent 10 hours on social media.The average final grade is 27% if a student spent 10 hours on social media.The average final grade is 99% if a student spent 10 hours on social media.The average final grade is 99% if a student spent 10 hours on social media.The average final grade is 7.2 if a student spent 10 hours on social media.The average final grade is 7.2 if a student spent 10 hours on social media.The average final grade is 92% if a student spent 10 hours on social media.

The average final grade percentage after x hours is given by y=–7.2x+98.9

Answered: teacher

Math

Algebra

teacher

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.4: Scatter Plots And Line Of Fit

Problem 1GP

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Question

Your teacher surveyed the class to determine the number of hours that each student spent on social media. Your teacher created a table and scatterplot graph that displayed the number of hours, x, and the average final grade percentage, y, based on the hours. Using the equation of the trend line of the data, y=–7.2x+98.9, predict the average final grade percentage, to the nearest whole number, if a student spent 10 hours on social media.(1 point)

Responses

The average final grade is 27% if a student spent 10 hours on social media.

The average final grade is 27% if a student spent 10 hours on social media.
The average final grade is 99% if a student spent 10 hours on social media.

The average final grade is 99% if a student spent 10 hours on social media.
The average final grade is 7.2 if a student spent 10 hours on social media.

The average final grade is 7.2 if a student spent 10 hours on social media.
The average final grade is 92% if a student spent 10 hours on social media.

Definition Definition Representation of the direction and degree of correlation in graphical form. The grouping of points that are plotted makes it a scatter diagram. A line can be drawn showing the relationship based on the direction of points and their distance from each other.

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