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3 years ago

Write an appropriate direct variation equation if y = 18 when x = 2

Mathematics

1 answer:

Sergeu [11.5K]3 years ago

8 0

Answer:

$y=9x$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form $k=\frac{y}{x}$ or $y=kx$

In this problem we have

y=18 when x=2

Find the value of the constant of proportionality k

$k=\frac{y}{x}$ ----> $k=\frac{18}{2}=9$

therefore

The equation is equal to

$y=9x$

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Answer:

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Step-by-step explanation:

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3 years ago

2, -2, 2, -2, common ratio

adelina 88 [10]

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3 years ago

What should be multiplied with -25/36 to get -5/9

Ierofanga [76]

Answer:

$\frac{4}{5}$

Step-by-step explanation:

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2 years ago

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lys-0071 [83]

Answer:

136

Step-by-step explanation:

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2 years ago

Sue and Cath have $20 left for a cab fare home. The cab fare is $3 per mile plus a $2 fixed charge. What is the maximum number o

Sedaia [141]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers