Question

A weather historian gathered data about the average temperature and total snowfall in her city during the month of January in recent years. The scatter plot shows the data she gathered and the line of best fit. The equation of the line of best fit is y = -0.368x + 18.483. Based on the line of best fit, approximately how many inches of snow fall during the month of January when the average temperature is 2°F? A. 17.7 B. 19.2 C. 23.9 D. 44.8

Answer 1

Answer:

A: 17.7

Step-by-step explanation:

y = -0.368x + 18.483

y = -0.368(2) + 18.483

y = -0.736 + 18.483

y = 17.747

Answer 2

Option A

The inches of snow fall during the month of January when the average temperature is 2°F is 17.747 inches

Solution:

Given that the equation of the line of best fit is:

y = -0.368x + 18.483

Where "y" is the total snowfall in her city

"x" is the average temperature

To find: Inches of snow fall during the month of January when the average temperature is $2^{\circ} F$

Substitute x = 2 in given equation to find the total snowfall

y = -0.368x + 18.483

y = -0.368(2) + 18.483

y = -0.736 + 18.483

y = 17.747

Therefore inches of snow fall during the month of January when the average temperature is 2°F is 17.747 inches