Question

1) Jesse collects data on his math scores on the last 12 tests and the number of hours he spent completing his math homework
assignments and studying in the week before every test. He creates a scatter plot to show the data.
Bahan
The regression line shown on the graph best models the data on the scatter plot.
Based on the given model, how many hours in the week before the test does Jesse need to study to get a score of 90 on the test? Round
your answer to the nearest hour.
Answer:
hours
2) Sheryl creates a scatter plot to analyze how an increase in the outside temperature above 52°F affects the sale of hot chocolate at her

Answer 1

Answer:

  24 hours

Step-by-step explanation:

It appears that the score (s) is related to the number of hours (h) by ...

  s = 30 +(10/4)h

So, for a score of 90, the number of study hours needs to be ...

  90 = 30 +2.5h

  60 = 2.5h

  60/2.5 = h = 24

Jesse needs to study 24 hours to get a score of 90.