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Oxana [17]
3 years ago
10

I WILL MARK AS BRAINLIST The quantities x and y are proportional Find the constant of proportionality (r) in the equation y=rx

Mathematics
2 answers:
tekilochka [14]3 years ago
7 0

Answer:

\frac{1}{2}

Step-by-step explanation:

Given that x and y are proportional and the equation relating them is

y = rx ← r is the constant of proportionality

To find r use any ordered pair from the table

Using x = 9, y = 4.5 , then

4.5 = 9r ( divide both sides by 9 )

\frac{4.5}{9} = r , that is

r = \frac{1}{2}

Vesna [10]3 years ago
7 0
The correct answer is 1/2
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Refer to the picture.

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