Question

The scatterplot shows temperature data from Nevada. The line of best fit, in blue, has equation C = 23.72 - 0.007m. For what elevation does the linear model predict a mean temperature of 15° C? (Round to two decimal places.)
A) 1245.71 meters
B) 1421.42 meters
C) 1645.71 meters
D) 1861.50 meters

Answer 1

dang i need the answer to this too :'(
EDIT : the answer is
A)1245.71 meters

Answer 2

Answer: A) 1245.71 meters

Step-by-step explanation:

Given: The line of best fit, in blue, has equation $C = 23.72 - 0.007m$

When we put the mean temperature=15° C, we get

$15= 23.72-0.007m\\\\\Rightarrow-0.007m=15-23.72\\\\\Rightarrow-0.007m=-8.72\\\\\Rightarrow m=\frac{-8.72}{-0.007}=1245.71428571\approx1245.71\ meters$

Hence, the linear model predict a mean temperature of 15° C for 1245.71 meters of elevation.