Sara claims that the number of pages she has read in her book is proportional to the number of minutes that she has spent reading. She collects several data points to prove her claim and expresses the data points as
(
x
,
y
)
coordinate pairs.
Which of the following actions could Sara take to prove her claim? Select TWO that apply.
To prove her claim, Sara could take the following actions:
1) Record the amount of time she spends reading and the corresponding number of pages she has read, then plot these as coordinate pairs. This will help her visualize the relationship between the number of pages and the time spent reading.
2) Calculate the slope of the line that best fits the data points. If the slope is constant (meaning the line is straight), then this would provide evidence of a proportional relationship between the number of pages and the time spent reading.