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Question

suppose that y is directly proportional to x and that y=10 when x=3.

Find the constant of proportionality k.
K=

Use y=kx to find when x=6
Y=

Is the answer: K=3.33 Y=9.99

Please help. I'm so confused.
8 years ago

Answers

Reiny
y = kx
given: x=3, y=10
10 = k(3)
k = 10/3

so y = (10/3)x
when x = 6
y = (10/3)(6) = 20

8 years ago

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