Constant of proportionality from a pair of values
The constant of proportionality is y divided by x.
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y is proportional to x. When x = 5, y = 20. Find the constant of proportionality k in y = kx.
Answer: 4
y is proportional to x. When x = 6, y = 36. Find the constant of proportionality k in y = kx.
Answer: 6
y is proportional to x. When x = 9, y = 72. Find the constant of proportionality k in y = kx.
Answer: 8
Tip: The constant of proportionality is y divided by x.
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