A graph was created comparing the number of hours students spent studying and their score on the final exam.
Which of the following is an appropriate estimation for a score if a student studied for 0 hours?

Question

A graph was created comparing the number of hours students spent studying and their score on the final exam.
 Which of the following is an appropriate estimation for a score if a student studied for 0 hours?

Quizplus · Accepted Answer

You can use the slope of a line to approximate the relationship between the two variables in the graph. In a scatter plot like this, we can draw an imaginary line that follows the pattern of the dots (more or less) to see the slope. 11ec0fb7_277b_3377_95f0_07a40dd6a5b0_NR0002_00 The slope of a line is the rate at which it increases/decreases on both axes. You may have seen this as ^rise/_runwhich is the difference on the y-axis over the difference on the x-axis. This slope shows that the relationship between the two variables is that for each hour of studying, a student gains approximately 10 points on their exam. Since people that studied one hour received around 30 points, 20 points is a reasonable assumption for what someone would score if they studied for 0 hours. 30 is too high since that is the score that 1-hour-students received. Anything higher than this would be inconsistent with the rest of the data.

A Graph Was Created Comparing the Number of Hours Students