Days exposed to sunlight: 3 4 5 6
Height in inches: 3.27 4.36 5.45 6.54
Days exposed to sunlight is the x in the equation. While height is the y in the equation. K is the constant of variation.
y = kx ; k = y/x
3.27 / 3 = 1.09
4.36 / 4 = 1.09
5.45 / 5 = 1.09
6.54 / 6 = 1.09
The equation for the direct variation is: y = 1.09x CHOICE A.