Which of the following graphs shows a negative linear relationship with a correlation coefficient, r, relatively close to -1? A. Graph A

B. Graph B

C. Graph C

D. Graph D

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

0.02040816326