Ansley9879 Ansley9879

14-12-2018
Mathematics

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When x = 12, y = 36. When x = 3, y = 9. What is the constant of proportionality? Enter your answer in the box.

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jimrgrant1 jimrgrant1

14-12-2018

Answer:

k = 3

Step-by-step explanation:

the equation relating x and y is

y = kx ← k is the constant of proportionality

to find use the given conditions

k = [tex]\frac{y}{x}[/tex] = [tex]\frac{36}{12}[/tex] = [tex]\frac{9}{3}[/tex] = 3

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