Question

hunters math teacher plots student grades on their weekly quizzes against the number of hours they say they study on the pair of coordinate axes and then draws the line of best fit. what does the point (2.5, 81.6) represent?
after studying 81.6 hours, a student should expect a score
of 2.5
a student who actually spent 81.6 hours studying and got a score of 81.6.
after studying 2.5 hours, a student should expect a score
of 81.6.
a student who actually spent 2.5 hours studying and got a score of 81.6.

Explanation:

Step1: Understand the coordinate system

In a coordinate system, the first value in an ordered pair \((x,y)\) represents the input (independent variable) and the second value represents the output (dependent variable).

Step2: Identify the variables

Here, the \(x -\)axis is labeled "Time Spent on Homework per Week (hours)" and the \(y -\)axis is labeled "Quiz Score". So, for the point \((2.5,81.6)\), \(x = 2.5\) (time spent studying) and \(y=81.6\) (quiz score).

Answer:

A student who actually spent \(2.5\) hours studying and got a score of \(81.6\).