Arjay records the number of chirps per minute (x) that crickets make at different temperatures (y) in degrees Fahrenheit.
He determines that the association is linear and that the line of best fit is
.
What is the interpretation of the slope and y-intercept of this equation?
The scatterplot showing Arjay records: the number of chirps per minute (x) that crickets make at different temperatures (y) in degrees Fahrenheit
A.
The slope predicts a temperature increase of about
° for every increase of 1 chirp per minute. The y-intercept shows that when the crickets are not chirping (x = 0), the temperature is 40°.
B.
The slope predicts a temperature increase of about 5° for every increase of 1 chirp per minute. The y -intercept shows that when the crickets are not chirping (x = 0), the temperature is 0°.
C.
The slope predicts a temperature increase of about 5° for every increase of 40 chirps per minute. The y-intercept shows that when the crickets are not chirping (x = 0), the temperature is
°.
D.
The chirping increases as the temperature goes down.
