Chart :
day exposed to sunlight: 3 , . 4 ,. . 5 , . .6
height ( in inches ) : 3.27, 4.36 , 5.45 , 6.54
the height a plant grew varied directly with the number of days the plant was exposed to sunlight. what is the equation for this direct variation?
a) y = 1.09x
b) y= 1.09 + x
c) y = x - 1.09
d) y = 1.09 / x
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