Question

PLEASE HELP WILL GIVE A MEDAL
There is a positive correlation between the number of times the Striped Ground Cricket chirps per second and the temperature in degrees Fahrenheit. If a scatter plot is made with the number of chirps on the horizontal axis and the trend line is found to be y = 3x + 25, then what would you predict the temperature in degrees Fahrenheit to be when there are 20 chirps per second?

A. -1.6

B. 85

C. 135

Answer 1

"number of chirps on the horizontal axis"

so x = number of chirps per second

Answer 2

" what would you predict the temperature in degrees Fahrenheit to be when there are 20 chirps per second?"

ie

what is y when x = 20 ?

Answer 3

use y = 3x + 25

Answer 4

85? y = 3(20) + 25 = 85

Answer 5

correct