Answer:
c
Step-by-step explanation:
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Answer: Reduction
(0,0)
1/3
Replace y with 15
The equation is now:
1x - 15 = 30
Add 15 to both sides:
1x = 45
Divide both sides by 1
X = 45
Y/x=k that is the equation for constant of proportionality
2/6=k
1/3=k
